12339321 has 8 divisors (see below), whose sum is σ = 16487904. Its totient is φ = 8208480.

The previous prime is 12339317. The next prime is 12339329. The reversal of 12339321 is 12393321.

12339321 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12339321 - 2² = 12339317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12339291 and 12339300.

It is not an unprimeable number, because it can be changed into a prime (12339329) 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, 2716 + ... + 5661.

It is an arithmetic number, because the mean of its divisors is an integer number (2060988).

Almost surely, 2^12339321 is an apocalyptic number.

It is an amenable number.

12339321 is a deficient number, since it is larger than the sum of its proper divisors (4148583).

12339321 is an equidigital number, since it uses as much as digits as its factorization.

12339321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8871.

The product of its digits is 972, while the sum is 24.

The square root of 12339321 is about 3512.7369670956. The cubic root of 12339321 is about 231.0807423748.

The spelling of 12339321 in words is "twelve million, three hundred thirty-nine thousand, three hundred twenty-one".