Code point
U+1F187
Glyph appearance depends on your fonts.
U+1F187
SoU+1F187 NEGATIVE SQUARED LATIN CAPITAL LETTER X is a Unicode 16.0.0 character in the Other Symbol category. It belongs to the Enclosed Alphanumeric Supplement block.
Choose the representation you need, then copy its value.
U+1F187
127367
🆇
🆇
F0 9F 86 87
D83C DD87
0001F187
%F0%9F%86%87
\U0001F187
\u{1F187}
\uD83C\uDD87
\1F187