131360021599 has 4 divisors (see below), whose sum is σ = 131581539936. Its totient is φ = 131138503264.

The previous prime is 131360021591. The next prime is 131360021641. The reversal of 131360021599 is 995120063131.

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

It is a cyclic number.

It is not a de Polignac number, because 131360021599 - 2³ = 131360021591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131360021591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110758279 + ... + 110759464.

It is an arithmetic number, because the mean of its divisors is an integer number (32895384984).

Almost surely, 2^131360021599 is an apocalyptic number.

131360021599 is a deficient number, since it is larger than the sum of its proper divisors (221518337).

131360021599 is an equidigital number, since it uses as much as digits as its factorization.

131360021599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221518336.

The product of its (nonzero) digits is 43740, while the sum is 40.

The spelling of 131360021599 in words is "one hundred thirty-one billion, three hundred sixty million, twenty-one thousand, five hundred ninety-nine".