431431222393 has 4 divisors (see below), whose sum is σ = 435463290000. Its totient is φ = 427399154788.

The previous prime is 431431222367. The next prime is 431431222399. The reversal of 431431222393 is 393222134134.

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 a de Polignac number, because none of the positive numbers 2^k-431431222393 is a prime.

It is a super-2 number, since 2×431431222393² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431431222399) 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, 2016033643 + ... + 2016033856.

It is an arithmetic number, because the mean of its divisors is an integer number (108865822500).

Almost surely, 2^431431222393 is an apocalyptic number.

It is an amenable number.

431431222393 is a deficient number, since it is larger than the sum of its proper divisors (4032067607).

431431222393 is a wasteful number, since it uses less digits than its factorization.

431431222393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4032067606.

The product of its digits is 93312, while the sum is 37.

The spelling of 431431222393 in words is "four hundred thirty-one billion, four hundred thirty-one million, two hundred twenty-two thousand, three hundred ninety-three".