131356310771 has 4 divisors (see below), whose sum is σ = 150121498032. Its totient is φ = 112591123512.

The previous prime is 131356310759. The next prime is 131356310773. The reversal of 131356310771 is 177013653131.

It is a happy number.

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

It is not a de Polignac number, because 131356310771 - 2⁶ = 131356310707 is a prime.

It is a super-2 number, since 2×131356310771² (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 (131356310773) 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, 9382593620 + ... + 9382593633.

It is an arithmetic number, because the mean of its divisors is an integer number (37530374508).

Almost surely, 2^131356310771 is an apocalyptic number.

131356310771 is a deficient number, since it is larger than the sum of its proper divisors (18765187261).

131356310771 is an equidigital number, since it uses as much as digits as its factorization.

131356310771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18765187260.

The product of its (nonzero) digits is 39690, while the sum is 38.

The spelling of 131356310771 in words is "one hundred thirty-one billion, three hundred fifty-six million, three hundred ten thousand, seven hundred seventy-one".