431322130321 has 4 divisors (see below), whose sum is σ = 431587234672. Its totient is φ = 431057025972.

The previous prime is 431322130297. The next prime is 431322130333. The reversal of 431322130321 is 123031223134.

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 a cyclic number.

It is not a de Polignac number, because 431322130321 - 2³⁵ = 396962391953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431322130381) 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, 132549735 + ... + 132552988.

It is an arithmetic number, because the mean of its divisors is an integer number (107896808668).

Almost surely, 2^431322130321 is an apocalyptic number.

It is an amenable number.

431322130321 is a deficient number, since it is larger than the sum of its proper divisors (265104351).

431322130321 is a wasteful number, since it uses less digits than its factorization.

431322130321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265104350.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 431322130321 its reverse (123031223134), we get a palindrome (554353353455).

The spelling of 431322130321 in words is "four hundred thirty-one billion, three hundred twenty-two million, one hundred thirty thousand, three hundred twenty-one".