31013222132 has 48 divisors (see below), whose sum is σ = 57443498112. Its totient is φ = 14632773120.

The previous prime is 31013222117. The next prime is 31013222153. The reversal of 31013222132 is 23122231013.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 705008 + ... + 747704.

It is an arithmetic number, because the mean of its divisors is an integer number (1196739544).

Almost surely, 2^31013222132 is an apocalyptic number.

It is an amenable number.

31013222132 is a deficient number, since it is larger than the sum of its proper divisors (26430275980).

31013222132 is a wasteful number, since it uses less digits than its factorization.

31013222132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42888 (or 42886 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 31013222132 its reverse (23122231013), we get a palindrome (54135453145).

The spelling of 31013222132 in words is "thirty-one billion, thirteen million, two hundred twenty-two thousand, one hundred thirty-two".