31113100322312 has 8 divisors (see below), whose sum is σ = 58337063104350. Its totient is φ = 15556550161152.

The previous prime is 31113100322207. The next prime is 31113100322323. The reversal of 31113100322312 is 21322300131113.

It can be written as a sum of positive squares in only one way, i.e., 19641968069476 + 11471132252836 = 4431926^2 + 3386906^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1944568770137 + ... + 1944568770152.

Almost surely, 2^{31113100322312} is an apocalyptic number.

It is an amenable number.

31113100322312 is a deficient number, since it is larger than the sum of its proper divisors (27223962782038).

31113100322312 is a wasteful number, since it uses less digits than its factorization.

31113100322312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3889137540295 (or 3889137540291 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 31113100322312 its reverse (21322300131113), we get a palindrome (52435400453425).

The spelling of 31113100322312 in words is "thirty-one trillion, one hundred thirteen billion, one hundred million, three hundred twenty-two thousand, three hundred twelve".