12112442317 has 2 divisors, whose sum is σ = 12112442318. Its totient is φ = 12112442316.

The previous prime is 12112442299. The next prime is 12112442339. The reversal of 12112442317 is 71324421121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10429719876 + 1682722441 = 102126^2 + 41021^2 .

It is a cyclic number.

It is not a de Polignac number, because 12112442317 - 2⁷ = 12112442189 is a prime.

It is a super-2 number, since 2×12112442317² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12112448317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6056221158 + 6056221159.

It is an arithmetic number, because the mean of its divisors is an integer number (6056221159).

Almost surely, 2^12112442317 is an apocalyptic number.

It is an amenable number.

12112442317 is a deficient number, since it is larger than the sum of its proper divisors (1).

12112442317 is an equidigital number, since it uses as much as digits as its factorization.

12112442317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 28.

Adding to 12112442317 its reverse (71324421121), we get a palindrome (83436863438).

The spelling of 12112442317 in words is "twelve billion, one hundred twelve million, four hundred forty-two thousand, three hundred seventeen".