12369321 has 8 divisors (see below), whose sum is σ = 18324960. Its totient is φ = 8246196.

The previous prime is 12369317. The next prime is 12369347. The reversal of 12369321 is 12396321.

12369321 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12369321 - 2² = 12369317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 458123 = 12369321 / (1 + 2 + 3 + 6 + 9 + 3 + 2 + 1).

It is not an unprimeable number, because it can be changed into a prime (12369121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229035 + ... + 229088.

It is an arithmetic number, because the mean of its divisors is an integer number (2290620).

Almost surely, 2^12369321 is an apocalyptic number.

It is an amenable number.

12369321 is a deficient number, since it is larger than the sum of its proper divisors (5955639).

12369321 is an equidigital number, since it uses as much as digits as its factorization.

12369321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458132 (or 458126 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 12369321 is about 3517.0045493289. The cubic root of 12369321 is about 231.2678626572.

Subtracting 12369321 from its reverse (12396321), we obtain a cube (27000 = 30³).

The spelling of 12369321 in words is "twelve million, three hundred sixty-nine thousand, three hundred twenty-one".