131012221402090 has 64 divisors (see below), whose sum is σ = 278348686755840. Its totient is φ = 43447003326720.

The previous prime is 131012221402079. The next prime is 131012221402177. The reversal of 131012221402090 is 90204122210131.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11422125 + ... + 19811344.

It is an arithmetic number, because the mean of its divisors is an integer number (4349198230560).

Almost surely, 2^{131012221402090} is an apocalyptic number.

131012221402090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131012221402090 is an abundant number, since it is smaller than the sum of its proper divisors (147336465353750).

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

131012221402090 is a wasteful number, since it uses less digits than its factorization.

131012221402090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31235447.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 131012221402090 in words is "one hundred thirty-one trillion, twelve billion, two hundred twenty-one million, four hundred two thousand, ninety".