431542323 has 10 divisors (see below), whose sum is σ = 644649764. Its totient is φ = 287694828.

The previous prime is 431542303. The next prime is 431542361. The reversal of 431542323 is 323245134.

It is not a de Polignac number, because 431542323 - 2⁵ = 431542291 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431542303) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2663761 + ... + 2663922.

Almost surely, 2^431542323 is an apocalyptic number.

431542323 is a deficient number, since it is larger than the sum of its proper divisors (213107441).

431542323 is an equidigital number, since it uses as much as digits as its factorization.

431542323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5327695 (or 5327686 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 431542323 is about 20773.5967757151. The cubic root of 431542323 is about 755.6855740836.

Adding to 431542323 its reverse (323245134), we get a palindrome (754787457).

The spelling of 431542323 in words is "four hundred thirty-one million, five hundred forty-two thousand, three hundred twenty-three".