131012430321 has 4 divisors (see below), whose sum is σ = 174683240432. Its totient is φ = 87341620212.

The previous prime is 131012430301. The next prime is 131012430323. The reversal of 131012430321 is 123034210131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 131012430321 - 2⁹ = 131012429809 is a prime.

It is a super-2 number, since 2×131012430321² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131012430323) 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, 21835405051 + ... + 21835405056.

It is an arithmetic number, because the mean of its divisors is an integer number (43670810108).

Almost surely, 2^131012430321 is an apocalyptic number.

It is an amenable number.

131012430321 is a deficient number, since it is larger than the sum of its proper divisors (43670810111).

131012430321 is an equidigital number, since it uses as much as digits as its factorization.

131012430321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43670810110.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 131012430321 its reverse (123034210131), we get a palindrome (254046640452).

The spelling of 131012430321 in words is "one hundred thirty-one billion, twelve million, four hundred thirty thousand, three hundred twenty-one".