431424023 has 4 divisors (see below), whose sum is σ = 431472600. Its totient is φ = 431375448.

The previous prime is 431424001. The next prime is 431424043. The reversal of 431424023 is 320424134.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 431424023 - 2²⁰ = 430375447 is a prime.

It is a super-2 number, since 2×431424023² = 372253375243009058, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 431424023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431424043) 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, 6740 + ... + 30137.

It is an arithmetic number, because the mean of its divisors is an integer number (107868150).

Almost surely, 2^431424023 is an apocalyptic number.

431424023 is a deficient number, since it is larger than the sum of its proper divisors (48577).

431424023 is a wasteful number, since it uses less digits than its factorization.

431424023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48576.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 431424023 is about 20770.7492161453. The cubic root of 431424023 is about 755.6165149834.

Adding to 431424023 its reverse (320424134), we get a palindrome (751848157).

The spelling of 431424023 in words is "four hundred thirty-one million, four hundred twenty-four thousand, twenty-three".