31133021190 has 32 divisors (see below), whose sum is σ = 75177662976. Its totient is φ = 8251204320.

The previous prime is 31133021189. The next prime is 31133021233. The reversal of 31133021190 is 9112033113.

It is a super-2 number, since 2×31133021190² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31133021190.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3178446 + ... + 3188225.

It is an arithmetic number, because the mean of its divisors is an integer number (2349301968).

Almost surely, 2^31133021190 is an apocalyptic number.

31133021190 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31133021190 is an abundant number, since it is smaller than the sum of its proper divisors (44044641786).

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

31133021190 is a wasteful number, since it uses less digits than its factorization.

31133021190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6366844.

The product of its (nonzero) digits is 486, while the sum is 24.

It can be divided in two parts, 311330 and 21190, that added together give a triangular number (332520 = T₈₁₅).

The spelling of 31133021190 in words is "thirty-one billion, one hundred thirty-three million, twenty-one thousand, one hundred ninety".