12331223 has 2 divisors, whose sum is σ = 12331224. Its totient is φ = 12331222.

The previous prime is 12331219. The next prime is 12331237. The reversal of 12331223 is 32213321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12331223 - 2² = 12331219 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12331213) 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 as a sum of consecutive naturals, namely, 6165611 + 6165612.

It is an arithmetic number, because the mean of its divisors is an integer number (6165612).

Almost surely, 2^12331223 is an apocalyptic number.

12331223 is a deficient number, since it is larger than the sum of its proper divisors (1).

12331223 is an equidigital number, since it uses as much as digits as its factorization.

12331223 is an odious number, because the sum of its binary digits is odd.

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

The square root of 12331223 is about 3511.5841154670. The cubic root of 12331223 is about 231.0301803986.

Adding to 12331223 its reverse (32213321), we get a palindrome (44544544).

The spelling of 12331223 in words is "twelve million, three hundred thirty-one thousand, two hundred twenty-three".