12319634161 has 2 divisors, whose sum is σ = 12319634162. Its totient is φ = 12319634160.

The previous prime is 12319634153. The next prime is 12319634177. The reversal of 12319634161 is 16143691321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8150478400 + 4169155761 = 90280^2 + 64569^2 .

It is an emirp because it is prime and its reverse (16143691321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12319634161 - 2³ = 12319634153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12319634161.

It is not a weakly prime, because it can be changed into another prime (12319614161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6159817080 + 6159817081.

It is an arithmetic number, because the mean of its divisors is an integer number (6159817081).

Almost surely, 2^12319634161 is an apocalyptic number.

It is an amenable number.

12319634161 is a deficient number, since it is larger than the sum of its proper divisors (1).

12319634161 is an equidigital number, since it uses as much as digits as its factorization.

12319634161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 37.

The spelling of 12319634161 in words is "twelve billion, three hundred nineteen million, six hundred thirty-four thousand, one hundred sixty-one".