12318437113 has 2 divisors, whose sum is σ = 12318437114. Its totient is φ = 12318437112.

The previous prime is 12318437093. The next prime is 12318437177. The reversal of 12318437113 is 31173481321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10925057529 + 1393379584 = 104523^2 + 37328^2 .

It is an emirp because it is prime and its reverse (31173481321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12318437113 - 2⁵ = 12318437081 is a prime.

It is not a weakly prime, because it can be changed into another prime (12318435113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6159218556 + 6159218557.

It is an arithmetic number, because the mean of its divisors is an integer number (6159218557).

Almost surely, 2^12318437113 is an apocalyptic number.

It is an amenable number.

12318437113 is a deficient number, since it is larger than the sum of its proper divisors (1).

12318437113 is an equidigital number, since it uses as much as digits as its factorization.

12318437113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 34.

The spelling of 12318437113 in words is "twelve billion, three hundred eighteen million, four hundred thirty-seven thousand, one hundred thirteen".