131339943808 has 32 divisors (see below), whose sum is σ = 261670545000. Its totient is φ = 65665767936.

The previous prime is 131339943793. The next prime is 131339943809. The reversal of 131339943808 is 808349933131.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131339943809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3255343 + ... + 3295441.

Almost surely, 2^131339943808 is an apocalyptic number.

It is an amenable number.

131339943808 is a deficient number, since it is larger than the sum of its proper divisors (130330601192).

131339943808 is an equidigital number, since it uses as much as digits as its factorization.

131339943808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65702 (or 65690 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 52.

The spelling of 131339943808 in words is "one hundred thirty-one billion, three hundred thirty-nine million, nine hundred forty-three thousand, eight hundred eight".