The household registration number of the household registration book consists of nine digits, which is randomly generated by the household administration system of the public security organ and is a number of household registration management of the public security bureau.

An account book has only one account number. There can't be more than two. The household registration number and household registration number on the citizen's household registration book are randomly assigned by the computer, and the same household does not print the household registration information at the same time, so the household registration number and household registration number are different. The number of households and people is the number counted in the computer when the public security organ manages the population information, which does not represent the personal information of citizens, and there is no need to worry about whether it is consistent with other people in the same household.