131330455519979 has 4 divisors (see below), whose sum is σ = 133290611572584. Its totient is φ = 129370299467376.

The previous prime is 131330455519849. The next prime is 131330455519987. The reversal of 131330455519979 is 979915554033131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131330455519979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131330455519279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 980078026202 + ... + 980078026335.

It is an arithmetic number, because the mean of its divisors is an integer number (33322652893146).

Almost surely, 2^{131330455519979} is an apocalyptic number.

131330455519979 is a deficient number, since it is larger than the sum of its proper divisors (1960156052605).

131330455519979 is an equidigital number, since it uses as much as digits as its factorization.

131330455519979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1960156052604.

The product of its (nonzero) digits is 68890500, while the sum is 65.

The spelling of 131330455519979 in words is "one hundred thirty-one trillion, three hundred thirty billion, four hundred fifty-five million, five hundred nineteen thousand, nine hundred seventy-nine".