31013331312102 has 16 divisors (see below), whose sum is σ = 62348044298160. Its totient is φ = 10284213491712.

The previous prime is 31013331312101. The next prime is 31013331312109. The reversal of 31013331312102 is 20121313331013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31013331312101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13390901827 + ... + 13390904142.

It is an arithmetic number, because the mean of its divisors is an integer number (3896752768635).

Almost surely, 2^{31013331312102} is an apocalyptic number.

31013331312102 is an abundant number, since it is smaller than the sum of its proper divisors (31334712986058).

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

31013331312102 is a wasteful number, since it uses less digits than its factorization.

31013331312102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26781806167.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 31013331312102 its reverse (20121313331013), we get a palindrome (51134644643115).

The spelling of 31013331312102 in words is "thirty-one trillion, thirteen billion, three hundred thirty-one million, three hundred twelve thousand, one hundred two".