Unicode Character "ℵ" (U+2135)

The character (Alef Symbol) is represented by the Unicode codepoint U+2135. It is encoded in the Letterlike Symbols block, which belongs to the Basic Multilingual Plane. It was added to Unicode in version 1.1 (June, 1993). It is HTML encoded as ℵ.

Main Unicode Properties

Name Alef Symbol
Unicode Codepoint U+2135
Unicode Version 1.1 (June, 1993)
Block Letterlike Symbols
Plane Basic Multilingual Plane

Bidirectional Data

Bidirectional class Left To Right (L)
Is mirrored? No

Other Unicode Data

Category Other Letter
Script Code for undetermined script
Combining Class Not Reordered
Decomposition mapping

U+2135 Conversion

HTML (decimal) ℵ
HTML (hex) ℵ
HTML (named) ℵ
URL Escape Code %E2%84%B5
CSS \002135
JavaScript, JSON \u2135
C, C++, Java \u2135
Python \u2135
Rust \u{2135}
Ruby \u2135

How to type "ℵ"

  • Windows ?: Hold Alt, then type 2 1 3 5. Release Alt.
  • Mac ?: Hold Alt ⌥, then type 2 1 3 5. Release Alt.


  • Times, Times New Roman, serif
  • Helvetica, Arial, sans-serif
  • Courier, Courier New, monospace

UTF Encodings

UTF-8 (hex) 0xE2 0x84 0xB5
UTF-16 (hex) 0x2135
UTF-32 (hex) 0x00002135