31319655124 has 12 divisors (see below), whose sum is σ = 54877151700. Its totient is φ = 15640468928.

The previous prime is 31319655097. The next prime is 31319655131. The reversal of 31319655124 is 42155691313.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11274192400 + 20045462724 = 106180^2 + 141582^2 .

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, 4836019 + ... + 4842490.

It is an arithmetic number, because the mean of its divisors is an integer number (4573095975).

Almost surely, 2^31319655124 is an apocalyptic number.

It is an amenable number.

31319655124 is a deficient number, since it is larger than the sum of its proper divisors (23557496576).

31319655124 is a wasteful number, since it uses less digits than its factorization.

31319655124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9679322 (or 9679320 counting only the distinct ones).

The product of its digits is 97200, while the sum is 40.

The spelling of 31319655124 in words is "thirty-one billion, three hundred nineteen million, six hundred fifty-five thousand, one hundred twenty-four".