12111321199 has 2 divisors, whose sum is σ = 12111321200. Its totient is φ = 12111321198.

The previous prime is 12111321197. The next prime is 12111321217. The reversal of 12111321199 is 99112311121.

12111321199 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12111321199 - 2¹ = 12111321197 is a prime.

Together with 12111321197, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12111321199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12111321191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6055660599 + 6055660600.

It is an arithmetic number, because the mean of its divisors is an integer number (6055660600).

Almost surely, 2^12111321199 is an apocalyptic number.

12111321199 is a deficient number, since it is larger than the sum of its proper divisors (1).

12111321199 is an equidigital number, since it uses as much as digits as its factorization.

12111321199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 972, while the sum is 31.

The spelling of 12111321199 in words is "twelve billion, one hundred eleven million, three hundred twenty-one thousand, one hundred ninety-nine".