31132021112 has 16 divisors (see below), whose sum is σ = 59950176360. Its totient is φ = 15145307424.

The previous prime is 31132021097. The next prime is 31132021153. The reversal of 31132021112 is 21112023113.

It is a congruent number.

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, 52587578 + ... + 52588169.

Almost surely, 2^31132021112 is an apocalyptic number.

It is an amenable number.

31132021112 is a deficient number, since it is larger than the sum of its proper divisors (28818155248).

31132021112 is a wasteful number, since it uses less digits than its factorization.

31132021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105175790 (or 105175786 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 31132021112 its reverse (21112023113), we get a palindrome (52244044225).

The spelling of 31132021112 in words is "thirty-one billion, one hundred thirty-two million, twenty-one thousand, one hundred twelve".