131045444204231 has 4 divisors (see below), whose sum is σ = 131058320842512. Its totient is φ = 131032567565952.

The previous prime is 131045444204201. The next prime is 131045444204291. The reversal of 131045444204231 is 132402444540131.

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 131045444204231 - 2¹⁸ = 131045443942087 is a prime.

It is a super-2 number, since 2×131045444204231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131045444204201) 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, 6438303875 + ... + 6438324228.

It is an arithmetic number, because the mean of its divisors is an integer number (32764580210628).

Almost surely, 2^{131045444204231} is an apocalyptic number.

131045444204231 is a deficient number, since it is larger than the sum of its proper divisors (12876638281).

131045444204231 is a wasteful number, since it uses less digits than its factorization.

131045444204231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12876638280.

The product of its (nonzero) digits is 184320, while the sum is 38.

Adding to 131045444204231 its reverse (132402444540131), we get a palindrome (263447888744362).

The spelling of 131045444204231 in words is "one hundred thirty-one trillion, forty-five billion, four hundred forty-four million, two hundred four thousand, two hundred thirty-one".