31031131100102 has 48 divisors (see below), whose sum is σ = 55068898386240. Its totient is φ = 13072459050000.

The previous prime is 31031131100051. The next prime is 31031131100143. The reversal of 31031131100102 is 20100113113013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64814777 + ... + 65291787.

It is an arithmetic number, because the mean of its divisors is an integer number (1147268716380).

Almost surely, 2^{31031131100102} is an apocalyptic number.

31031131100102 is a deficient number, since it is larger than the sum of its proper divisors (24037767286138).

31031131100102 is a wasteful number, since it uses less digits than its factorization.

31031131100102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488337 (or 488330 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 31031131100102 its reverse (20100113113013), we get a palindrome (51131244213115).

The spelling of 31031131100102 in words is "thirty-one trillion, thirty-one billion, one hundred thirty-one million, one hundred thousand, one hundred two".