31023012000312 has 80 divisors (see below), whose sum is σ = 86894072430000. Its totient is φ = 10340895248640.

The previous prime is 31023012000209. The next prime is 31023012000313. The reversal of 31023012000312 is 21300021032013.

31023012000312 is a `hidden beast` number, since 3 + 1 + 0 + 230 + 120 + 0 + 0 + 312 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31023012000313) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 82269237 + ... + 82645467.

It is an arithmetic number, because the mean of its divisors is an integer number (1086175905375).

Almost surely, 2^{31023012000312} is an apocalyptic number.

It is an amenable number.

31023012000312 is an abundant number, since it is smaller than the sum of its proper divisors (55871060429688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31023012000312 is a wasteful number, since it uses less digits than its factorization.

31023012000312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503498 (or 503485 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 31023012000312 its reverse (21300021032013), we get a palindrome (52323033032325).

The spelling of 31023012000312 in words is "thirty-one trillion, twenty-three billion, twelve million, three hundred twelve", and thus it is an aban number.