12122432317 has 2 divisors, whose sum is σ = 12122432318. Its totient is φ = 12122432316.

The previous prime is 12122432297. The next prime is 12122432347. The reversal of 12122432317 is 71323422121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10275065956 + 1847366361 = 101366^2 + 42981^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12122432317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12122432347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061216158 + 6061216159.

It is an arithmetic number, because the mean of its divisors is an integer number (6061216159).

Almost surely, 2^12122432317 is an apocalyptic number.

It is an amenable number.

12122432317 is a deficient number, since it is larger than the sum of its proper divisors (1).

12122432317 is an equidigital number, since it uses as much as digits as its factorization.

12122432317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 28.

Adding to 12122432317 its reverse (71323422121), we get a palindrome (83445854438).

The spelling of 12122432317 in words is "twelve billion, one hundred twenty-two million, four hundred thirty-two thousand, three hundred seventeen".