31313003122312 has 16 divisors (see below), whose sum is σ = 62165520904860. Its totient is φ = 14735530881024.

The previous prime is 31313003122307. The next prime is 31313003122409. The reversal of 31313003122312 is 21322130031313.

It can be written as a sum of positive squares in 2 ways, for example, as 30271937976036 + 1041065146276 = 5501994^2 + 1020326^2 .

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, 115121334873 + ... + 115121335144.

Almost surely, 2^{31313003122312} is an apocalyptic number.

It is an amenable number.

31313003122312 is a deficient number, since it is larger than the sum of its proper divisors (30852517782548).

31313003122312 is a wasteful number, since it uses less digits than its factorization.

31313003122312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230242670040 (or 230242670036 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 31313003122312 its reverse (21322130031313), we get a palindrome (52635133153625).

The spelling of 31313003122312 in words is "thirty-one trillion, three hundred thirteen billion, three million, one hundred twenty-two thousand, three hundred twelve".