121113199 has 2 divisors, whose sum is σ = 121113200. Its totient is φ = 121113198.

The previous prime is 121113143. The next prime is 121113203. The reversal of 121113199 is 991311121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121113199 - 2⁷ = 121113071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121113119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60556599 + 60556600.

It is an arithmetic number, because the mean of its divisors is an integer number (60556600).

Almost surely, 2^121113199 is an apocalyptic number.

121113199 is a deficient number, since it is larger than the sum of its proper divisors (1).

121113199 is an equidigital number, since it uses as much as digits as its factorization.

121113199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 486, while the sum is 28.

The square root of 121113199 is about 11005.1442062337. The cubic root of 121113199 is about 494.7629365135.

The spelling of 121113199 in words is "one hundred twenty-one million, one hundred thirteen thousand, one hundred ninety-nine".