31132312132 has 24 divisors (see below), whose sum is σ = 54943773696. Its totient is φ = 15434239968.

The previous prime is 31132312111. The next prime is 31132312157. The reversal of 31132312132 is 23121323113.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 862683 + ... + 898045.

It is an arithmetic number, because the mean of its divisors is an integer number (2289323904).

Almost surely, 2^31132312132 is an apocalyptic number.

It is an amenable number.

31132312132 is a deficient number, since it is larger than the sum of its proper divisors (23811461564).

31132312132 is a wasteful number, since it uses less digits than its factorization.

31132312132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37227 (or 37225 counting only the distinct ones).

The product of its digits is 648, while the sum is 22.

Adding to 31132312132 its reverse (23121323113), we get a palindrome (54253635245).

The spelling of 31132312132 in words is "thirty-one billion, one hundred thirty-two million, three hundred twelve thousand, one hundred thirty-two".