12312904 has 16 divisors (see below), whose sum is σ = 23270400. Its totient is φ = 6107472.

The previous prime is 12312901. The next prime is 12312917. The reversal of 12312904 is 40921321.

12312904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12312901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5044 + ... + 7075.

It is an arithmetic number, because the mean of its divisors is an integer number (1454400).

Almost surely, 2^12312904 is an apocalyptic number.

It is an amenable number.

12312904 is a deficient number, since it is larger than the sum of its proper divisors (10957496).

12312904 is a wasteful number, since it uses less digits than its factorization.

12312904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12252 (or 12248 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 12312904 is about 3508.9747790487. The cubic root of 12312904 is about 230.9157192084.

The spelling of 12312904 in words is "twelve million, three hundred twelve thousand, nine hundred four".