31313033332 has 12 divisors (see below), whose sum is σ = 62626066720. Its totient is φ = 13419871416.

The previous prime is 31313033327. The next prime is 31313033357. The reversal of 31313033332 is 23333031313.

31313033332 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 31313033297 and 31313033306.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 559161282 + ... + 559161337.

Almost surely, 2^31313033332 is an apocalyptic number.

It is an amenable number.

31313033332 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

31313033332 is a wasteful number, since it uses less digits than its factorization.

31313033332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118322630 (or 1118322628 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 25.

Adding to 31313033332 its reverse (23333031313), we get a palindrome (54646064645).

The spelling of 31313033332 in words is "thirty-one billion, three hundred thirteen million, thirty-three thousand, three hundred thirty-two".