31911316572082 has 32 divisors (see below), whose sum is σ = 54146460242880. Its totient is φ = 14014377907200.

The previous prime is 31911316572071. The next prime is 31911316572097. The reversal of 31911316572082 is 28027561311913.

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 15 ways as a sum of consecutive naturals, for example, 368600919 + ... + 368687482.

It is an arithmetic number, because the mean of its divisors is an integer number (1692076882590).

Almost surely, 2^{31911316572082} is an apocalyptic number.

31911316572082 is a deficient number, since it is larger than the sum of its proper divisors (22235143670798).

31911316572082 is a wasteful number, since it uses less digits than its factorization.

31911316572082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737288506.

The product of its (nonzero) digits is 544320, while the sum is 49.

Adding to 31911316572082 its reverse (28027561311913), we get a palindrome (59938877883995).

The spelling of 31911316572082 in words is "thirty-one trillion, nine hundred eleven billion, three hundred sixteen million, five hundred seventy-two thousand, eighty-two".