131137286971 has 4 divisors (see below), whose sum is σ = 131158822744. Its totient is φ = 131115751200.

The previous prime is 131137286957. The next prime is 131137286981. The reversal of 131137286971 is 179682731131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 179682731131 = 19 ⋅9456985849.

It is a cyclic number.

It is not a de Polignac number, because 131137286971 - 2⁵ = 131137286939 is a prime.

It is a super-2 number, since 2×131137286971² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131137286981) 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, 10758750 + ... + 10770931.

It is an arithmetic number, because the mean of its divisors is an integer number (32789705686).

Almost surely, 2^131137286971 is an apocalyptic number.

131137286971 is a deficient number, since it is larger than the sum of its proper divisors (21535773).

131137286971 is an equidigital number, since it uses as much as digits as its factorization.

131137286971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21535772.

The product of its digits is 381024, while the sum is 49.

The spelling of 131137286971 in words is "one hundred thirty-one billion, one hundred thirty-seven million, two hundred eighty-six thousand, nine hundred seventy-one".