12238321 has 4 divisors (see below), whose sum is σ = 12250612. Its totient is φ = 12226032.

The previous prime is 12238313. The next prime is 12238327. The reversal of 12238321 is 12383221.

12238321 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12383221 = 2801 ⋅4421.

It can be written as a sum of positive squares in 2 ways, for example, as 8381025 + 3857296 = 2895^2 + 1964^2 .

It is a cyclic number.

It is not a de Polignac number, because 12238321 - 2³ = 12238313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12238292 and 12238301.

It is not an unprimeable number, because it can be changed into a prime (12238327) 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, 4506 + ... + 6691.

It is an arithmetic number, because the mean of its divisors is an integer number (3062653).

Almost surely, 2^12238321 is an apocalyptic number.

It is an amenable number.

12238321 is a deficient number, since it is larger than the sum of its proper divisors (12291).

12238321 is a wasteful number, since it uses less digits than its factorization.

12238321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12290.

The product of its digits is 576, while the sum is 22.

The square root of 12238321 is about 3498.3311735741. The cubic root of 12238321 is about 230.4485324174.

It can be divided in two parts, 1 and 2238321, that added together give a palindrome (2238322).

The spelling of 12238321 in words is "twelve million, two hundred thirty-eight thousand, three hundred twenty-one".