12310321 has 2 divisors, whose sum is σ = 12310322. Its totient is φ = 12310320.

The previous prime is 12310303. The next prime is 12310327. The reversal of 12310321 is 12301321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6969600 + 5340721 = 2640^2 + 2311^2 .

It is a cyclic number.

It is not a de Polignac number, because 12310321 - 2⁵ = 12310289 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12310327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6155160 + 6155161.

It is an arithmetic number, because the mean of its divisors is an integer number (6155161).

Almost surely, 2^12310321 is an apocalyptic number.

It is an amenable number.

12310321 is a deficient number, since it is larger than the sum of its proper divisors (1).

12310321 is an equidigital number, since it uses as much as digits as its factorization.

12310321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 12310321 is about 3508.6067035221. The cubic root of 12310321 is about 230.8995709189.

Adding to 12310321 its reverse (12301321), we get a palindrome (24611642).

The spelling of 12310321 in words is "twelve million, three hundred ten thousand, three hundred twenty-one".