131903120959 has 4 divisors (see below), whose sum is σ = 131928893440. Its totient is φ = 131877348480.

The previous prime is 131903120953. The next prime is 131903120977. The reversal of 131903120959 is 959021309131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 959021309131 = 1913 ⋅501317987.

It is a cyclic number.

It is not a de Polignac number, because 131903120959 - 2⁵ = 131903120927 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 (131903120953) 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, 12878562 + ... + 12888799.

It is an arithmetic number, because the mean of its divisors is an integer number (32982223360).

Almost surely, 2^131903120959 is an apocalyptic number.

131903120959 is a deficient number, since it is larger than the sum of its proper divisors (25772481).

131903120959 is an equidigital number, since it uses as much as digits as its factorization.

131903120959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25772480.

The product of its (nonzero) digits is 65610, while the sum is 43.

The spelling of 131903120959 in words is "one hundred thirty-one billion, nine hundred three million, one hundred twenty thousand, nine hundred fifty-nine".