99931013099 has 2 divisors, whose sum is σ = 99931013100. Its totient is φ = 99931013098.

The previous prime is 99931013093. The next prime is 99931013123. The reversal of 99931013099 is 99031013999.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99931013099 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99931013099.

It is not a weakly prime, because it can be changed into another prime (99931013093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49965506549 + 49965506550.

It is an arithmetic number, because the mean of its divisors is an integer number (49965506550).

Almost surely, 2^99931013099 is an apocalyptic number.

99931013099 is a deficient number, since it is larger than the sum of its proper divisors (1).

99931013099 is an equidigital number, since it uses as much as digits as its factorization.

99931013099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 531441, while the sum is 53.

The spelling of 99931013099 in words is "ninety-nine billion, nine hundred thirty-one million, thirteen thousand, ninety-nine".