31310002121012 has 24 divisors (see below), whose sum is σ = 57958002747456. Its totient is φ = 14769220771008.

The previous prime is 31310002120963. The next prime is 31310002121023. The reversal of 31310002121012 is 21012120001313.

It is a congruent number.

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, 2330994038 + ... + 2331007469.

It is an arithmetic number, because the mean of its divisors is an integer number (2414916781144).

Almost surely, 2^{31310002121012} is an apocalyptic number.

It is an amenable number.

31310002121012 is a deficient number, since it is larger than the sum of its proper divisors (26648000626444).

31310002121012 is a wasteful number, since it uses less digits than its factorization.

31310002121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4662001607 (or 4662001605 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 31310002121012 its reverse (21012120001313), we get a palindrome (52322122122325).

The spelling of 31310002121012 in words is "thirty-one trillion, three hundred ten billion, two million, one hundred twenty-one thousand, twelve".