431500221040423 has 4 divisors (see below), whose sum is σ = 431501887844560. Its totient is φ = 431498554236288.

The previous prime is 431500221040393. The next prime is 431500221040459. The reversal of 431500221040423 is 324040122005134.

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 431500221040423 - 2³³ = 431491631105831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431500221040223) 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, 833013690 + ... + 833531527.

It is an arithmetic number, because the mean of its divisors is an integer number (107875471961140).

Almost surely, 2^{431500221040423} is an apocalyptic number.

431500221040423 is a deficient number, since it is larger than the sum of its proper divisors (1666804137).

431500221040423 is a wasteful number, since it uses less digits than its factorization.

431500221040423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1666804136.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 431500221040423 its reverse (324040122005134), we get a palindrome (755540343045557).

The spelling of 431500221040423 in words is "four hundred thirty-one trillion, five hundred billion, two hundred twenty-one million, forty thousand, four hundred twenty-three".