131021689351679 has 16 divisors (see below), whose sum is σ = 152293337414400. Its totient is φ = 110389015093824.

The previous prime is 131021689351639. The next prime is 131021689351697. The reversal of 131021689351679 is 976153986120131.

It is a cyclic number.

It is not a de Polignac number, because 131021689351679 - 2³⁶ = 130952969874943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131021689351639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13132349 + ... + 20844710.

It is an arithmetic number, because the mean of its divisors is an integer number (9518333588400).

Almost surely, 2^{131021689351679} is an apocalyptic number.

131021689351679 is a deficient number, since it is larger than the sum of its proper divisors (21271648062721).

131021689351679 is an equidigital number, since it uses as much as digits as its factorization.

131021689351679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33986462.

The product of its (nonzero) digits is 14696640, while the sum is 62.

The spelling of 131021689351679 in words is "one hundred thirty-one trillion, twenty-one billion, six hundred eighty-nine million, three hundred fifty-one thousand, six hundred seventy-nine".