431134023 has 4 divisors (see below), whose sum is σ = 574845368. Its totient is φ = 287422680.

The previous prime is 431134021. The next prime is 431134037. The reversal of 431134023 is 320431134.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 431134023 - 2¹ = 431134021 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 (431134021) 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, 71855668 + ... + 71855673.

It is an arithmetic number, because the mean of its divisors is an integer number (143711342).

Almost surely, 2^431134023 is an apocalyptic number.

431134023 is a deficient number, since it is larger than the sum of its proper divisors (143711345).

431134023 is a wasteful number, since it uses less digits than its factorization.

431134023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143711344.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 431134023 is about 20763.7670715119. The cubic root of 431134023 is about 755.4471704446.

Adding to 431134023 its reverse (320431134), we get a palindrome (751565157).

The spelling of 431134023 in words is "four hundred thirty-one million, one hundred thirty-four thousand, twenty-three".