12188375399 has 2 divisors, whose sum is σ = 12188375400. Its totient is φ = 12188375398.

The previous prime is 12188375363. The next prime is 12188375429. The reversal of 12188375399 is 99357388121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12188375399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12188375599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6094187699 + 6094187700.

It is an arithmetic number, because the mean of its divisors is an integer number (6094187700).

Almost surely, 2^12188375399 is an apocalyptic number.

12188375399 is a deficient number, since it is larger than the sum of its proper divisors (1).

12188375399 is an equidigital number, since it uses as much as digits as its factorization.

12188375399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3265920, while the sum is 56.

The spelling of 12188375399 in words is "twelve billion, one hundred eighty-eight million, three hundred seventy-five thousand, three hundred ninety-nine".