12038321 has 4 divisors (see below), whose sum is σ = 12081444. Its totient is φ = 11995200.

The previous prime is 12038317. The next prime is 12038339. The reversal of 12038321 is 12383021.

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 9541921 + 2496400 = 3089^2 + 1580^2 .

It is a cyclic number.

It is not a de Polignac number, because 12038321 - 2² = 12038317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12038293 and 12038302.

It is not an unprimeable number, because it can be changed into a prime (12038311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21140 + ... + 21701.

It is an arithmetic number, because the mean of its divisors is an integer number (3020361).

Almost surely, 2^12038321 is an apocalyptic number.

It is an amenable number.

12038321 is a deficient number, since it is larger than the sum of its proper divisors (43123).

12038321 is an equidigital number, since it uses as much as digits as its factorization.

12038321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43122.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 12038321 is about 3469.6283662663. The cubic root of 12038321 is about 229.1862928572.

The spelling of 12038321 in words is "twelve million, thirty-eight thousand, three hundred twenty-one".