13121004199 has 2 divisors, whose sum is σ = 13121004200. Its totient is φ = 13121004198.

The previous prime is 13121004191. The next prime is 13121004203. The reversal of 13121004199 is 99140012131.

It is a strong prime.

It is an emirp because it is prime and its reverse (99140012131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13121004199 - 2³ = 13121004191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13121004199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13121004191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6560502099 + 6560502100.

It is an arithmetic number, because the mean of its divisors is an integer number (6560502100).

Almost surely, 2^13121004199 is an apocalyptic number.

13121004199 is a deficient number, since it is larger than the sum of its proper divisors (1).

13121004199 is an equidigital number, since it uses as much as digits as its factorization.

13121004199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 31.

The spelling of 13121004199 in words is "thirteen billion, one hundred twenty-one million, four thousand, one hundred ninety-nine".