431401032321 has 64 divisors (see below), whose sum is σ = 714117888000. Its totient is φ = 226017340416.

The previous prime is 431401032301. The next prime is 431401032487. The reversal of 431401032321 is 123230104134.

It is a happy number.

It is not a de Polignac number, because 431401032321 - 2⁵ = 431401032289 is a prime.

It is a super-2 number, since 2×431401032321² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 431401032291 and 431401032300.

It is not an unprimeable number, because it can be changed into a prime (431401032301) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5780955 + ... + 5855103.

It is an arithmetic number, because the mean of its divisors is an integer number (11158092000).

Almost surely, 2^431401032321 is an apocalyptic number.

It is an amenable number.

431401032321 is a deficient number, since it is larger than the sum of its proper divisors (282716855679).

431401032321 is a wasteful number, since it uses less digits than its factorization.

431401032321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74598.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 431401032321 its reverse (123230104134), we get a palindrome (554631136455).

The spelling of 431401032321 in words is "four hundred thirty-one billion, four hundred one million, thirty-two thousand, three hundred twenty-one".