131377044571 has 4 divisors (see below), whose sum is σ = 133603774200. Its totient is φ = 129150314944.

The previous prime is 131377044563. The next prime is 131377044577. The reversal of 131377044571 is 175440773131.

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 131377044571 - 2³ = 131377044563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131377044577) 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, 1113364726 + ... + 1113364843.

It is an arithmetic number, because the mean of its divisors is an integer number (33400943550).

Almost surely, 2^131377044571 is an apocalyptic number.

131377044571 is a deficient number, since it is larger than the sum of its proper divisors (2226729629).

131377044571 is an equidigital number, since it uses as much as digits as its factorization.

131377044571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2226729628.

The product of its (nonzero) digits is 246960, while the sum is 43.

The spelling of 131377044571 in words is "one hundred thirty-one billion, three hundred seventy-seven million, forty-four thousand, five hundred seventy-one".