131056452431 has 4 divisors (see below), whose sum is σ = 131402248200. Its totient is φ = 130710656664.

The previous prime is 131056452391. The next prime is 131056452487. The reversal of 131056452431 is 134254650131.

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 131056452431 - 2⁶ = 131056452367 is a prime.

It is a super-2 number, since 2×131056452431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131056452391 and 131056452400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131056451431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172897316 + ... + 172898073.

It is an arithmetic number, because the mean of its divisors is an integer number (32850562050).

Almost surely, 2^131056452431 is an apocalyptic number.

131056452431 is a deficient number, since it is larger than the sum of its proper divisors (345795769).

131056452431 is an equidigital number, since it uses as much as digits as its factorization.

131056452431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345795768.

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 131056452431 in words is "one hundred thirty-one billion, fifty-six million, four hundred fifty-two thousand, four hundred thirty-one".