31310313124 has 6 divisors (see below), whose sum is σ = 54793047974. Its totient is φ = 15655156560.

The previous prime is 31310313079. The next prime is 31310313157. The reversal of 31310313124 is 42131301313.

It can be written as a sum of positive squares in only one way, i.e., 23052956224 + 8257356900 = 151832^2 + 90870^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31310313095 and 31310313104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3913789137 + ... + 3913789144.

Almost surely, 2^31310313124 is an apocalyptic number.

It is an amenable number.

31310313124 is a deficient number, since it is larger than the sum of its proper divisors (23482734850).

31310313124 is a wasteful number, since it uses less digits than its factorization.

31310313124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7827578285 (or 7827578283 counting only the distinct ones).

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

Adding to 31310313124 its reverse (42131301313), we get a palindrome (73441614437).

The spelling of 31310313124 in words is "thirty-one billion, three hundred ten million, three hundred thirteen thousand, one hundred twenty-four".