12131390312 has 32 divisors (see below), whose sum is σ = 22815102720. Its totient is φ = 6047395200.

The previous prime is 12131390303. The next prime is 12131390333. The reversal of 12131390312 is 21309313121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5102468 + ... + 5104844.

It is an arithmetic number, because the mean of its divisors is an integer number (712971960).

Almost surely, 2^12131390312 is an apocalyptic number.

It is an amenable number.

12131390312 is a deficient number, since it is larger than the sum of its proper divisors (10683712408).

12131390312 is a wasteful number, since it uses less digits than its factorization.

12131390312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4041 (or 4037 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 26.

The spelling of 12131390312 in words is "twelve billion, one hundred thirty-one million, three hundred ninety thousand, three hundred twelve".