12241231 has 2 divisors, whose sum is σ = 12241232. Its totient is φ = 12241230.

The previous prime is 12241223. The next prime is 12241279. The reversal of 12241231 is 13214221.

It is a weak prime.

It is an emirp because it is prime and its reverse (13214221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12241231 - 2³ = 12241223 is a prime.

It is a super-2 number, since 2×12241231² = 299695472790722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12241331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6120615 + 6120616.

It is an arithmetic number, because the mean of its divisors is an integer number (6120616).

Almost surely, 2^12241231 is an apocalyptic number.

12241231 is a deficient number, since it is larger than the sum of its proper divisors (1).

12241231 is an equidigital number, since it uses as much as digits as its factorization.

12241231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96, while the sum is 16.

The square root of 12241231 is about 3498.7470614493. The cubic root of 12241231 is about 230.4667961451.

Adding to 12241231 its reverse (13214221), we get a palindrome (25455452).

The spelling of 12241231 in words is "twelve million, two hundred forty-one thousand, two hundred thirty-one".