31312122486930 has 24 divisors (see below), whose sum is σ = 81411518466252. Its totient is φ = 8349899329824.

The previous prime is 31312122486929. The next prime is 31312122486949. The reversal of 31312122486930 is 3968422121313.

It is a happy number.

31312122486930 is a `hidden beast` number, since 3 + 1 + 3 + 12 + 122 + 486 + 9 + 30 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 30371352462441 + 940770024489 = 5511021^2 + 969933^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 173956235949 + ... + 173956236128.

Almost surely, 2^{31312122486930} is an apocalyptic number.

31312122486930 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31312122486930 is an abundant number, since it is smaller than the sum of its proper divisors (50099395979322).

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

31312122486930 is a wasteful number, since it uses less digits than its factorization.

31312122486930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347912472090 (or 347912472087 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 31312122486930 in words is "thirty-one trillion, three hundred twelve billion, one hundred twenty-two million, four hundred eighty-six thousand, nine hundred thirty".