12023321 has 4 divisors (see below), whose sum is σ = 12085812. Its totient is φ = 11960832.

The previous prime is 12023317. The next prime is 12023329. The reversal of 12023321 is 12332021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3385600 + 8637721 = 1840^2 + 2939^2 .

It is a cyclic number.

It is not a de Polignac number, because 12023321 - 2² = 12023317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12023296 and 12023305.

It is not an unprimeable number, because it can be changed into a prime (12023329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30956 + ... + 31341.

It is an arithmetic number, because the mean of its divisors is an integer number (3021453).

Almost surely, 2^12023321 is an apocalyptic number.

It is an amenable number.

12023321 is a deficient number, since it is larger than the sum of its proper divisors (62491).

12023321 is an equidigital number, since it uses as much as digits as its factorization.

12023321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62490.

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

The square root of 12023321 is about 3467.4660777000. The cubic root of 12023321 is about 229.0910629871.

Adding to 12023321 its reverse (12332021), we get a palindrome (24355342).

The spelling of 12023321 in words is "twelve million, twenty-three thousand, three hundred twenty-one".