12243317 has 2 divisors, whose sum is σ = 12243318. Its totient is φ = 12243316.

The previous prime is 12243313. The next prime is 12243323. The reversal of 12243317 is 71334221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12103441 + 139876 = 3479^2 + 374^2 .

It is a cyclic number.

It is not a de Polignac number, because 12243317 - 2² = 12243313 is a prime.

It is a super-2 number, since 2×12243317² = 299797622324978, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12243292 and 12243301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12243313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6121658 + 6121659.

It is an arithmetic number, because the mean of its divisors is an integer number (6121659).

Almost surely, 2^12243317 is an apocalyptic number.

It is an amenable number.

12243317 is a deficient number, since it is larger than the sum of its proper divisors (1).

12243317 is an equidigital number, since it uses as much as digits as its factorization.

12243317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008, while the sum is 23.

The square root of 12243317 is about 3499.0451554674. The cubic root of 12243317 is about 230.4798865070.

Adding to 12243317 its reverse (71334221), we get a palindrome (83577538).

The spelling of 12243317 in words is "twelve million, two hundred forty-three thousand, three hundred seventeen".