121413199 has 2 divisors, whose sum is σ = 121413200. Its totient is φ = 121413198.

The previous prime is 121413191. The next prime is 121413203. The reversal of 121413199 is 991314121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121413199 - 2³ = 121413191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121413199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121413191) 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, 60706599 + 60706600.

It is an arithmetic number, because the mean of its divisors is an integer number (60706600).

Almost surely, 2^121413199 is an apocalyptic number.

121413199 is a deficient number, since it is larger than the sum of its proper divisors (1).

121413199 is an equidigital number, since it uses as much as digits as its factorization.

121413199 is an odious number, because the sum of its binary digits is odd.

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

The square root of 121413199 is about 11018.7657657289. The cubic root of 121413199 is about 495.1711124919.

The spelling of 121413199 in words is "one hundred twenty-one million, four hundred thirteen thousand, one hundred ninety-nine".