231263 has 4 divisors (see below), whose sum is σ = 232368. Its totient is φ = 230160.

The previous prime is 231241. The next prime is 231269. The reversal of 231263 is 362132.

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 231263 - 2¹⁰ = 230239 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231269) 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, 131 + ... + 692.

It is an arithmetic number, because the mean of its divisors is an integer number (58092).

2²³¹²⁶³ is an apocalyptic number.

231263 is a deficient number, since it is larger than the sum of its proper divisors (1105).

231263 is an equidigital number, since it uses as much as digits as its factorization.

231263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104.

The product of its digits is 216, while the sum is 17.

The square root of 231263 is about 480.8981181082. The cubic root of 231263 is about 61.3812014728.

Adding to 231263 its reverse (362132), we get a palindrome (593395).

It can be divided in two parts, 23126 and 3, that multiplied together give a triangular number (69378 = T₃₇₂).

The spelling of 231263 in words is "two hundred thirty-one thousand, two hundred sixty-three".