12243033217 has 2 divisors, whose sum is σ = 12243033218. Its totient is φ = 12243033216.

The previous prime is 12243033181. The next prime is 12243033223. The reversal of 12243033217 is 71233034221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6975757441 + 5267275776 = 83521^2 + 72576^2 .

It is an emirp because it is prime and its reverse (71233034221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12243033217 - 2²⁷ = 12108815489 is a prime.

It is not a weakly prime, because it can be changed into another prime (12243033277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6121516608 + 6121516609.

It is an arithmetic number, because the mean of its divisors is an integer number (6121516609).

Almost surely, 2^12243033217 is an apocalyptic number.

It is an amenable number.

12243033217 is a deficient number, since it is larger than the sum of its proper divisors (1).

12243033217 is an equidigital number, since it uses as much as digits as its factorization.

12243033217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 28.

Adding to 12243033217 its reverse (71233034221), we get a palindrome (83476067438).

The spelling of 12243033217 in words is "twelve billion, two hundred forty-three million, thirty-three thousand, two hundred seventeen".