Code point
U+23AE
Glyph appearance depends on your fonts.
U+23AE
SmU+23AE INTEGRAL EXTENSION is a Unicode 16.0.0 character in the Math Symbol category. It belongs to the Miscellaneous Technical block.
Choose the representation you need, then copy its value.
U+23AE
9134
⎮
⎮
E2 8E AE
23AE
000023AE
%E2%8E%AE
\u23AE
\u23AE
\u23AE
\23AE