diff --git a/.changesets/fix_renee_fix_large_ints.md b/.changesets/fix_renee_fix_large_ints.md
new file mode 100644
index 0000000000..756249f92c
--- /dev/null
+++ b/.changesets/fix_renee_fix_large_ints.md
@@ -0,0 +1,22 @@
+### Fix error response on large numbers in query transformations ([PR #3820](https://github.com/apollographql/router/pull/3820))
+
+This bug caused the router to reject operations where a large hardcoded integer was used as input for a Float field:
+
+```graphql
+# Schema
+type Query {
+    field(argument: Float): Int!
+}
+# Operation
+{
+    field(argument: 123456789123)
+}
+```
+
+Now the number is correctly interpreted as a Float.
+This bug only affected hardcoded numbers, not numbers provided through variables.
+
+<!-- start metadata -->
+---
+
+By [@goto-bus-stop](https://github.com/goto-bus-stop) in https://github.com/apollographql/router/pull/3820
\ No newline at end of file
diff --git a/apollo-router/src/query_planner/labeler.rs b/apollo-router/src/query_planner/labeler.rs
index 7bbb095eb7..45eac5215c 100644
--- a/apollo-router/src/query_planner/labeler.rs
+++ b/apollo-router/src/query_planner/labeler.rs
@@ -116,3 +116,19 @@ pub(crate) fn directive(
 
     Ok(encoder_directive)
 }
+
+#[cfg(test)]
+mod tests {
+    use apollo_compiler::ApolloCompiler;
+
+    use super::add_defer_labels;
+
+    #[test]
+    fn large_float_written_as_int() {
+        let mut compiler = ApolloCompiler::new();
+        compiler.add_type_system("type Query { field(id: Float): String! }", "schema.graphql");
+        let file_id = compiler.add_executable(r#"{ field(id: 1234567890123) }"#, "query.graphql");
+        let result = add_defer_labels(file_id, &compiler).unwrap();
+        insta::assert_snapshot!(result);
+    }
+}
diff --git a/apollo-router/src/query_planner/snapshots/apollo_router__query_planner__labeler__tests__large_float_written_as_int.snap b/apollo-router/src/query_planner/snapshots/apollo_router__query_planner__labeler__tests__large_float_written_as_int.snap
new file mode 100644
index 0000000000..8be08a97cc
--- /dev/null
+++ b/apollo-router/src/query_planner/snapshots/apollo_router__query_planner__labeler__tests__large_float_written_as_int.snap
@@ -0,0 +1,8 @@
+---
+source: apollo-router/src/query_planner/labeler.rs
+expression: result
+---
+query {
+  field(id: 1234567890123)
+}
+
diff --git a/apollo-router/src/spec/query/transform.rs b/apollo-router/src/spec/query/transform.rs
index 76bfe0f9be..2a5571fc37 100644
--- a/apollo-router/src/spec/query/transform.rs
+++ b/apollo-router/src/spec/query/transform.rs
@@ -369,9 +369,10 @@ pub(crate) fn ty(hir: &hir::Type) -> apollo_encoder::Type_ {
 pub(crate) fn value(hir: &hir::Value) -> Result<apollo_encoder::Value, BoxError> {
     Ok(match hir {
         hir::Value::Variable(val) => apollo_encoder::Value::Variable(val.name().into()),
-        hir::Value::Int { value, .. } => {
-            apollo_encoder::Value::Int(value.to_i32_checked().ok_or("Int value overflows i32")?)
-        }
+        hir::Value::Int { value, .. } => value
+            .to_i32_checked()
+            .map(apollo_encoder::Value::Int)
+            .unwrap_or_else(|| apollo_encoder::Value::Float(value.get())),
         hir::Value::Float { value, .. } => apollo_encoder::Value::Float(value.get()),
         hir::Value::String { value, .. } => apollo_encoder::Value::String(value.clone()),
         hir::Value::Boolean { value, .. } => apollo_encoder::Value::Boolean(*value),