12203231 has 2 divisors, whose sum is σ = 12203232. Its totient is φ = 12203230.

The previous prime is 12203207. The next prime is 12203237. The reversal of 12203231 is 13230221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12203231 - 2¹⁰ = 12202207 is a prime.

It is a super-2 number, since 2×12203231² = 297837693678722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12203237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6101615 + 6101616.

It is an arithmetic number, because the mean of its divisors is an integer number (6101616).

Almost surely, 2^12203231 is an apocalyptic number.

12203231 is a deficient number, since it is larger than the sum of its proper divisors (1).

12203231 is an equidigital number, since it uses as much as digits as its factorization.

12203231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 12203231 is about 3493.3123250004. The cubic root of 12203231 is about 230.2280724410.

Adding to 12203231 its reverse (13230221), we get a palindrome (25433452).

The spelling of 12203231 in words is "twelve million, two hundred three thousand, two hundred thirty-one".