131132313044431 has 4 divisors (see below), whose sum is σ = 138034013731000. Its totient is φ = 124230612357864.

The previous prime is 131132313044423. The next prime is 131132313044437. The reversal of 131132313044431 is 134440313231131.

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 131132313044431 - 2³ = 131132313044423 is a prime.

It is a super-2 number, since 2×131132313044431² (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 (131132313044437) 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, 3450850343256 + ... + 3450850343293.

It is an arithmetic number, because the mean of its divisors is an integer number (34508503432750).

Almost surely, 2^{131132313044431} is an apocalyptic number.

131132313044431 is a deficient number, since it is larger than the sum of its proper divisors (6901700686569).

131132313044431 is an equidigital number, since it uses as much as digits as its factorization.

131132313044431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6901700686568.

The product of its (nonzero) digits is 31104, while the sum is 34.

Adding to 131132313044431 its reverse (134440313231131), we get a palindrome (265572626275562).

The spelling of 131132313044431 in words is "one hundred thirty-one trillion, one hundred thirty-two billion, three hundred thirteen million, forty-four thousand, four hundred thirty-one".