99959830423 has 2 divisors, whose sum is σ = 99959830424. Its totient is φ = 99959830422.

The previous prime is 99959830381. The next prime is 99959830427. The reversal of 99959830423 is 32403895999.

It is a strong prime.

It is an emirp because it is prime and its reverse (32403895999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99959830423 - 2⁹ = 99959829911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99959830427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49979915211 + 49979915212.

It is an arithmetic number, because the mean of its divisors is an integer number (49979915212).

Almost surely, 2^99959830423 is an apocalyptic number.

99959830423 is a deficient number, since it is larger than the sum of its proper divisors (1).

99959830423 is an equidigital number, since it uses as much as digits as its factorization.

99959830423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18895680, while the sum is 61.

The spelling of 99959830423 in words is "ninety-nine billion, nine hundred fifty-nine million, eight hundred thirty thousand, four hundred twenty-three".