231163 has 4 divisors (see below), whose sum is σ = 232288. Its totient is φ = 230040.

The previous prime is 231131. The next prime is 231169. The reversal of 231163 is 361132.

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 231163 - 2⁵ = 231131 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231169) 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, 156 + ... + 697.

It is an arithmetic number, because the mean of its divisors is an integer number (58072).

2²³¹¹⁶³ is an apocalyptic number.

231163 is a deficient number, since it is larger than the sum of its proper divisors (1125).

231163 is an equidigital number, since it uses as much as digits as its factorization.

231163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124.

The product of its digits is 108, while the sum is 16.

The square root of 231163 is about 480.7941347396. The cubic root of 231163 is about 61.3723529539.

Adding to 231163 its reverse (361132), we get a palindrome (592295).

It can be divided in two parts, 2 and 31163, that multiplied together give a palindrome (62326).

The spelling of 231163 in words is "two hundred thirty-one thousand, one hundred sixty-three".