12323517757 has 2 divisors, whose sum is σ = 12323517758. Its totient is φ = 12323517756.

The previous prime is 12323517751. The next prime is 12323517769. The reversal of 12323517757 is 75771532321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7960386841 + 4363130916 = 89221^2 + 66054^2 .

It is an emirp because it is prime and its reverse (75771532321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12323517757 - 2¹⁹ = 12322993469 is a prime.

It is a super-2 number, since 2×12323517757² (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 (12323517751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6161758878 + 6161758879.

It is an arithmetic number, because the mean of its divisors is an integer number (6161758879).

Almost surely, 2^12323517757 is an apocalyptic number.

It is an amenable number.

12323517757 is a deficient number, since it is larger than the sum of its proper divisors (1).

12323517757 is an equidigital number, since it uses as much as digits as its factorization.

12323517757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 308700, while the sum is 43.

The spelling of 12323517757 in words is "twelve billion, three hundred twenty-three million, five hundred seventeen thousand, seven hundred fifty-seven".