31012332504 has 96 divisors (see below), whose sum is σ = 80426258640. Its totient is φ = 9964864000.

The previous prime is 31012332353. The next prime is 31012332511. The reversal of 31012332504 is 40523321013.

It is a Harshad number since it is a multiple of its sum of digits (24).

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 23 ways as a sum of consecutive naturals, for example, 23836654 + ... + 23837954.

Almost surely, 2^31012332504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31012332504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40213129320).

31012332504 is an abundant number, since it is smaller than the sum of its proper divisors (49413926136).

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

31012332504 is a wasteful number, since it uses less digits than its factorization.

31012332504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2549 (or 2516 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 31012332504 its reverse (40523321013), we get a palindrome (71535653517).

The spelling of 31012332504 in words is "thirty-one billion, twelve million, three hundred thirty-two thousand, five hundred four".