131330531352431 has 4 divisors (see below), whose sum is σ = 131351500627632. Its totient is φ = 131309562077232.

The previous prime is 131330531352403. The next prime is 131330531352451. The reversal of 131330531352431 is 134253135033131.

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 131330531352431 - 2⁶ = 131330531352367 is a prime.

It is a super-2 number, since 2×131330531352431² (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 (131330531352451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10484628206 + ... + 10484640731.

It is an arithmetic number, because the mean of its divisors is an integer number (32837875156908).

Almost surely, 2^{131330531352431} is an apocalyptic number.

131330531352431 is a deficient number, since it is larger than the sum of its proper divisors (20969275201).

131330531352431 is an equidigital number, since it uses as much as digits as its factorization.

131330531352431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20969275200.

The product of its (nonzero) digits is 145800, while the sum is 38.

Adding to 131330531352431 its reverse (134253135033131), we get a palindrome (265583666385562).

The spelling of 131330531352431 in words is "one hundred thirty-one trillion, three hundred thirty billion, five hundred thirty-one million, three hundred fifty-two thousand, four hundred thirty-one".