This character is a Math Symbol and is commonly used, that is, in no specific script.
The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it acts as Other Neutral. When changing direction it is mirrored. The word that U+2320 forms with similar adjacent characters prevents a line break inside it.
The Wikipedia has the following information about this codepoint:
The integral symbol:
is used to denote integrals and antiderivatives in mathematics, especially in calculus.
Representations
System
Representation (click value to copy)
Nº
8992
UTF-8
E2 8C A0
UTF-16
23 20
UTF-32
00 00 23 20
URL-Quoted
%E2%8C%A0
HTML hex reference
⌠
Wrong windows-1252 Mojibake
âŒ
Encoding: CP437 (hex bytes)
F4
Encoding: CP860 (hex bytes)
F4
Encoding: CP861 (hex bytes)
F4
Encoding: CP862 (hex bytes)
F4
Encoding: CP863 (hex bytes)
F4
Encoding: CP865 (hex bytes)
F4
Encoding: GB18030 (hex bytes)
81 36 EA 36
Encoding: KOI8_R (hex bytes)
93
Encoding: KOI8_U (hex bytes)
93
Adobe Glyph List
integraltop
Adobe Glyph List
integraltp
digraph
Iu
RFC 5137
\u'2320'
Bash and Zsh inside echo -e
\u2320
C and C++
\u2320
C#
\u2320
CSS
\002320
Excel
=UNICHAR(8992)
Go
\u2320
JavaScript
\u2320
Modern JavaScript since ES6
\u{2320}
JSON
\u2320
Java
\u2320
Lua
\u{2320}
Matlab
char(8992)
Perl
"\x{2320}"
PHP
\u{2320}
PostgreSQL
U&'\2320'
PowerShell
`u{2320}
Python
\u2320
Ruby
\u{2320}
Rust
\u{2320}
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