121003435099 has 2 divisors, whose sum is σ = 121003435100. Its totient is φ = 121003435098.

The previous prime is 121003435087. The next prime is 121003435109. The reversal of 121003435099 is 990534300121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121003435099 - 2²⁹ = 120466564187 is a prime.

It is not a weakly prime, because it can be changed into another prime (121007435099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60501717549 + 60501717550.

It is an arithmetic number, because the mean of its divisors is an integer number (60501717550).

Almost surely, 2^121003435099 is an apocalyptic number.

121003435099 is a deficient number, since it is larger than the sum of its proper divisors (1).

121003435099 is an equidigital number, since it uses as much as digits as its factorization.

121003435099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 37.

The spelling of 121003435099 in words is "one hundred twenty-one billion, three million, four hundred thirty-five thousand, ninety-nine".