31312213321194 has 24 divisors (see below), whose sum is σ = 73061831083332. Its totient is φ = 9634527175680.

The previous prime is 31312213321177. The next prime is 31312213321211. The reversal of 31312213321194 is 49112331221313.

31312213321194 is a `hidden beast` number, since 3 + 1 + 3 + 1 + 221 + 332 + 11 + 94 = 666.

It is an interprime number because it is at equal distance from previous prime (31312213321177) and next prime (31312213321211).

It can be written as a sum of positive squares in 2 ways, for example, as 24713197310169 + 6599016011025 = 4971237^2 + 2568855^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66906438487 + ... + 66906438954.

Almost surely, 2^{31312213321194} is an apocalyptic number.

31312213321194 is an abundant number, since it is smaller than the sum of its proper divisors (41749617762138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31312213321194 is a wasteful number, since it uses less digits than its factorization.

31312213321194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133812877462 (or 133812877459 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The spelling of 31312213321194 in words is "thirty-one trillion, three hundred twelve billion, two hundred thirteen million, three hundred twenty-one thousand, one hundred ninety-four".