Can I get authorization by obtaining the national invention patent application number?

No, the patent application number refers to an acceptance number given by the patent office after receiving the application materials, which only means that the application materials have been received. The Patent Office will conduct a preliminary examination of the invention patent, mainly to see whether the application documents, supplementary materials and fees submitted by the applicant comply with the provisions of the Patent Law and its detailed rules for implementation. After the preliminary examination, it is the substantive examination. If there is no reason for rejection, it will be registered and announced, and then the patent will be authorized.