31316000012 has 24 divisors (see below), whose sum is σ = 59790664080. Its totient is φ = 14233218560.

The previous prime is 31315999997. The next prime is 31316000021. The reversal of 31316000012 is 21000061313.

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, 565664 + ... + 618552.

It is an arithmetic number, because the mean of its divisors is an integer number (2491277670).

Almost surely, 2^31316000012 is an apocalyptic number.

It is an amenable number.

31316000012 is a deficient number, since it is larger than the sum of its proper divisors (28474664068).

31316000012 is a wasteful number, since it uses less digits than its factorization.

31316000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66361 (or 66359 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 31316000012 its reverse (21000061313), we get a palindrome (52316061325).

The spelling of 31316000012 in words is "thirty-one billion, three hundred sixteen million, twelve", and thus it is an aban number.