131369240490 has 64 divisors (see below), whose sum is σ = 326309765760. Its totient is φ = 33808078080.

The previous prime is 131369240437. The next prime is 131369240549. The reversal of 131369240490 is 94042963131.

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, 1898277 + ... + 1966263.

It is an arithmetic number, because the mean of its divisors is an integer number (5098590090).

Almost surely, 2^131369240490 is an apocalyptic number.

131369240490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131369240490 is an abundant number, since it is smaller than the sum of its proper divisors (194940525270).

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

131369240490 is a wasteful number, since it uses less digits than its factorization.

131369240490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70247.

The product of its (nonzero) digits is 139968, while the sum is 42.

The spelling of 131369240490 in words is "one hundred thirty-one billion, three hundred sixty-nine million, two hundred forty thousand, four hundred ninety".