This character is a Decimal Number and is commonly used, that is, in no specific script. The codepoint has the Decimal value 0.
The glyph is not a composition. It has a Narrow East Asian Width. In bidirectional context it acts as European Number and is not mirrored. The glyph can, under circumstances, be confused with 1 other glyphs. In text U+0030 behaves as Numeric regarding line breaks. It has type Numeric for sentence and Numeric for word breaks. The Grapheme Cluster Break is Any.
This character is designated as an emoji. It will be rendered as monochrome character on conforming platforms. To enable colorful emoji display, you can combine it with Glyph for U+FE0FVariation Selector-16: 0️ See the Emojipedia for more details on this character’s emoji properties.
The Wikipedia has the following information about this codepoint:
0 (zero) is a number representing an empty quantity. As a number, 0 fulfills a central role in mathematics as the additive identity of the integers, real numbers, and other algebraic structures.
In place-value notation such as decimal, 0 also serves as a numerical digit to indicate that that position's power of 10 is not multiplied by anything or added to the resulting number. This concept appears to have been difficult to discover.
Common names for the number 0 in English are zero, nought, naught (), nil. In contexts where at least one adjacent digit distinguishes it from the letter O, the number is sometimes pronounced as oh or o (). Informal or slang terms for 0 include zilch and zip. Historically, ought, aught (), and cipher have also been used.