12235231 has 2 divisors, whose sum is σ = 12235232. Its totient is φ = 12235230.

The previous prime is 12235199. The next prime is 12235247. The reversal of 12235231 is 13253221.

12235231 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12235231 - 2⁵ = 12235199 is a prime.

It is a super-2 number, since 2×12235231² = 299401755246722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12235199 and 12235208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12235331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6117615 + 6117616.

It is an arithmetic number, because the mean of its divisors is an integer number (6117616).

Almost surely, 2^12235231 is an apocalyptic number.

12235231 is a deficient number, since it is larger than the sum of its proper divisors (1).

12235231 is an equidigital number, since it uses as much as digits as its factorization.

12235231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 360, while the sum is 19.

The square root of 12235231 is about 3497.8895065453. The cubic root of 12235231 is about 230.4291358051.

Adding to 12235231 its reverse (13253221), we get a palindrome (25488452).

It can be divided in two parts, 122 and 35231, that added together give a palindrome (35353).

The spelling of 12235231 in words is "twelve million, two hundred thirty-five thousand, two hundred thirty-one".