12023039 has 16 divisors (see below), whose sum is σ = 14362176. Its totient is φ = 9849600.

The previous prime is 12023021. The next prime is 12023051. The reversal of 12023039 is 93032021.

It is a cyclic number.

It is not a de Polignac number, because 12023039 - 2⁸ = 12022783 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12023039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12023059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15419 + ... + 16179.

It is an arithmetic number, because the mean of its divisors is an integer number (897636).

Almost surely, 2^12023039 is an apocalyptic number.

12023039 is a deficient number, since it is larger than the sum of its proper divisors (2339137).

12023039 is an equidigital number, since it uses as much as digits as its factorization.

12023039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 12023039 is about 3467.4254137616. The cubic root of 12023039 is about 229.0892719072.

The spelling of 12023039 in words is "twelve million, twenty-three thousand, thirty-nine".