431231163 has 64 divisors (see below), whose sum is σ = 729907200. Its totient is φ = 222773760.

The previous prime is 431231147. The next prime is 431231183. The reversal of 431231163 is 361132134.

It is a happy number.

It is not a de Polignac number, because 431231163 - 2⁴ = 431231147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (431231113) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 244278 + ... + 246036.

It is an arithmetic number, because the mean of its divisors is an integer number (11404800).

Almost surely, 2^431231163 is an apocalyptic number.

431231163 is a deficient number, since it is larger than the sum of its proper divisors (298676037).

431231163 is a wasteful number, since it uses less digits than its factorization.

431231163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832.

The product of its digits is 1296, while the sum is 24.

The square root of 431231163 is about 20766.1061106795. The cubic root of 431231163 is about 755.5039034815.

Adding to 431231163 its reverse (361132134), we get a palindrome (792363297).

The spelling of 431231163 in words is "four hundred thirty-one million, two hundred thirty-one thousand, one hundred sixty-three".