31311131111202 has 64 divisors (see below), whose sum is σ = 66541009489920. Its totient is φ = 9800981520000.

The previous prime is 31311131111111. The next prime is 31311131111233. The reversal of 31311131111202 is 20211113111313.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3554302 + ... + 8674982.

It is an arithmetic number, because the mean of its divisors is an integer number (1039703273280).

Almost surely, 2^{31311131111202} is an apocalyptic number.

31311131111202 is an abundant number, since it is smaller than the sum of its proper divisors (35229878378718).

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

31311131111202 is a wasteful number, since it uses less digits than its factorization.

31311131111202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5121519.

The product of its (nonzero) digits is 108, while the sum is 21.

Adding to 31311131111202 its reverse (20211113111313), we get a palindrome (51522244222515).

The spelling of 31311131111202 in words is "thirty-one trillion, three hundred eleven billion, one hundred thirty-one million, one hundred eleven thousand, two hundred two".