31302320122312 has 8 divisors (see below), whose sum is σ = 58691850229350. Its totient is φ = 15651160061152.

The previous prime is 31302320122303. The next prime is 31302320122393. The reversal of 31302320122312 is 21322102320313.

It can be written as a sum of positive squares in only one way, i.e., 16851632545476 + 14450687576836 = 4105074^2 + 3801406^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1956395007637 + ... + 1956395007652.

Almost surely, 2^{31302320122312} is an apocalyptic number.

It is an amenable number.

31302320122312 is a deficient number, since it is larger than the sum of its proper divisors (27389530107038).

31302320122312 is a wasteful number, since it uses less digits than its factorization.

31302320122312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3912790015295 (or 3912790015291 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 31302320122312 its reverse (21322102320313), we get a palindrome (52624422442625).

The spelling of 31302320122312 in words is "thirty-one trillion, three hundred two billion, three hundred twenty million, one hundred twenty-two thousand, three hundred twelve".