31326312900 has 36 divisors (see below), whose sum is σ = 90637466192. Its totient is φ = 8353683360.

The previous prime is 31326312889. The next prime is 31326312907. The reversal of 31326312900 is 921362313.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (31326312907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52210222 + ... + 52210821.

Almost surely, 2^31326312900 is an apocalyptic number.

31326312900 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31326312900 is an abundant number, since it is smaller than the sum of its proper divisors (59311153292).

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

31326312900 is a wasteful number, since it uses less digits than its factorization.

31326312900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104421060 (or 104421053 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 30.

The spelling of 31326312900 in words is "thirty-one billion, three hundred twenty-six million, three hundred twelve thousand, nine hundred".