31100515500130 has 64 divisors (see below), whose sum is σ = 58070909357280. Its totient is φ = 11992435015680.

The previous prime is 31100515500121. The next prime is 31100515500247. The reversal of 31100515500130 is 3100551500113.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 739302469929 + 30361213030201 = 859827^2 + 5510101^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31100515500095 and 31100515500104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 156234022 + ... + 156432958.

Almost surely, 2^{31100515500130} is an apocalyptic number.

31100515500130 is a deficient number, since it is larger than the sum of its proper divisors (26970393857150).

31100515500130 is an equidigital number, since it uses as much as digits as its factorization.

31100515500130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199672 (or 199614 counting only the distinct ones).

The product of its (nonzero) digits is 1125, while the sum is 25.

The spelling of 31100515500130 in words is "thirty-one trillion, one hundred billion, five hundred fifteen million, five hundred thousand, one hundred thirty".