10123012012 has 72 divisors (see below), whose sum is σ = 18927049680. Its totient is φ = 4731471360.

The previous prime is 10123012007. The next prime is 10123012043. The reversal of 10123012012 is 21021032101.

It is a junction number, because it is equal to n+sod(n) for n = 10123011983 and 10123012001.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79708693 + ... + 79708819.

It is an arithmetic number, because the mean of its divisors is an integer number (262875690).

Almost surely, 2^10123012012 is an apocalyptic number.

It is an amenable number.

10123012012 is a deficient number, since it is larger than the sum of its proper divisors (8804037668).

10123012012 is a wasteful number, since it uses less digits than its factorization.

10123012012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431 (or 302 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 10123012012 its reverse (21021032101), we get a palindrome (31144044113).

The spelling of 10123012012 in words is "ten billion, one hundred twenty-three million, twelve thousand, twelve".