Code point
U+323B
Glyph appearance depends on your fonts.
U+323B
So<compat> 0028 5B66 0029U+323B PARENTHESIZED IDEOGRAPH STUDY is a Unicode 16.0.0 character in the Other Symbol category. It belongs to the Enclosed CJK Letters and Months block.
Choose the representation you need, then copy its value.
U+323B
12859
㈻
㈻
E3 88 BB
323B
0000323B
%E3%88%BB
\u323B
\u323B
\u323B
\323B