13232231 has 4 divisors (see below), whose sum is σ = 13279272. Its totient is φ = 13185192.

The previous prime is 13232213. The next prime is 13232249. The reversal of 13232231 is 13223231.

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

It is an interprime number because it is at equal distance from previous prime (13232213) and next prime (13232249).

It is a cyclic number.

It is not a de Polignac number, because 13232231 - 2²² = 9037927 is a prime.

It is a super-2 number, since 2×13232231² = 350183874474722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13232731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23096 + ... + 23661.

It is an arithmetic number, because the mean of its divisors is an integer number (3319818).

Almost surely, 2^13232231 is an apocalyptic number.

13232231 is a deficient number, since it is larger than the sum of its proper divisors (47041).

13232231 is an equidigital number, since it uses as much as digits as its factorization.

13232231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47040.

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

The square root of 13232231 is about 3637.6133659310. The cubic root of 13232231 is about 236.5253486381.

Adding to 13232231 its reverse (13223231), we get a palindrome (26455462).

The spelling of 13232231 in words is "thirteen million, two hundred thirty-two thousand, two hundred thirty-one".