The number Chinese characters from 1 to 10 are written as: one, two, three, four, five, six, seven, eight, nine and ten.

The case of numbers between 1 and 10: one, two, three, four, five, six, seven, eight, nine, ten.

Decimal writing after 10:

Chinese characters are lowercase: hundred, thousand, ten thousand, hundred million, trillion, Beijing, Yi, Yi, Gou, Jian, Zheng, Zai and Ji.

Capital letters of Chinese characters: Bai, Qian, Wan, Yi, Zhao, Jing, Ai, Ai, Gou, Jian, Zheng, Zai, Ji.

Extended data:

Source of capital figures:

Numbers in Chinese characters are originally case-insensitive. In fact, "upper case number" is the homonym of 10 of "lower case number". The original "capitalized numbers" have other meanings, some of which are still in use today, while others have been lost and forgotten in the long river of history.

In the Ming Dynasty, Zhu Yuanzhang issued a decree because of a major corruption case "Guo Huan case" at that time, which clearly required that the number of bookkeeping should be changed from "one, two, three, four, five, six, seven, eight, nine, ten, hundred, thousand" to "one, two, three, four, five, eight, seven, seven".

Later, "Mo" and "Qian" were rewritten as "Bai and Qian", which have been used ever since.

References:

Baidu Encyclopedia-Numbers

Baidu Encyclopedia-Capital Numbers