What is the patent authorization number? Is it a patent number or an authorization announcement number? In other words, ZL or China? thank you

A patent has no authorization number, only a patent number. After authorization, the original patent application number becomes the patent number, but the word ZL is added in front of it. Authorized announcement number refers to the text number authorized to publish. Whether invention disclosure, authorized disclosure or utility model authorization disclosure, CN is added before the document number, that is, CN stands for document and ZL stands for patent.