121313099 has 2 divisors, whose sum is σ = 121313100. Its totient is φ = 121313098.

The previous prime is 121313083. The next prime is 121313107. The reversal of 121313099 is 990313121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121313099 - 2⁴ = 121313083 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (121313009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60656549 + 60656550.

It is an arithmetic number, because the mean of its divisors is an integer number (60656550).

Almost surely, 2^121313099 is an apocalyptic number.

121313099 is a deficient number, since it is larger than the sum of its proper divisors (1).

121313099 is an equidigital number, since it uses as much as digits as its factorization.

121313099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 29.

The square root of 121313099 is about 11014.2225781033. Note that the first 3 decimals coincide. The cubic root of 121313099 is about 495.0349925948.

The spelling of 121313099 in words is "one hundred twenty-one million, three hundred thirteen thousand, ninety-nine".