12236321 has 2 divisors, whose sum is σ = 12236322. Its totient is φ = 12236320.

The previous prime is 12236291. The next prime is 12236339. The reversal of 12236321 is 12363221.

It is a happy number.

12236321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11826721 + 409600 = 3439^2 + 640^2 .

It is a cyclic number.

It is not a de Polignac number, because 12236321 - 2¹⁸ = 11974177 is a prime.

It is equal to p₈₀₂₅₄₁ and since 12236321 and 802541 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 12236293 and 12236302.

It is not a weakly prime, because it can be changed into another prime (12239321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6118160 + 6118161.

It is an arithmetic number, because the mean of its divisors is an integer number (6118161).

Almost surely, 2^12236321 is an apocalyptic number.

It is an amenable number.

12236321 is a deficient number, since it is larger than the sum of its proper divisors (1).

12236321 is an equidigital number, since it uses as much as digits as its factorization.

12236321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 20.

The square root of 12236321 is about 3498.0453113132. The cubic root of 12236321 is about 230.4359783486.

Adding to 12236321 its reverse (12363221), we get a palindrome (24599542).

It can be divided in two parts, 1 and 2236321, that added together give a palindrome (2236322).

The spelling of 12236321 in words is "twelve million, two hundred thirty-six thousand, three hundred twenty-one".