31321000132 has 12 divisors (see below), whose sum is σ = 54814166316. Its totient is φ = 15659809760.

The previous prime is 31321000127. The next prime is 31321000147. The reversal of 31321000132 is 23100012313.

It can be written as a sum of positive squares in 2 ways, for example, as 14331441796 + 16989558336 = 119714^2 + 130344^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62719 + ... + 258022.

It is an arithmetic number, because the mean of its divisors is an integer number (4567847193).

Almost surely, 2^31321000132 is an apocalyptic number.

It is an amenable number.

31321000132 is a deficient number, since it is larger than the sum of its proper divisors (23493166184).

31321000132 is a wasteful number, since it uses less digits than its factorization.

31321000132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345158 (or 345156 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 31321000132 its reverse (23100012313), we get a palindrome (54421012445).

The spelling of 31321000132 in words is "thirty-one billion, three hundred twenty-one million, one hundred thirty-two", and thus it is an aban number.