99043234109 has 2 divisors, whose sum is σ = 99043234110. Its totient is φ = 99043234108.

The previous prime is 99043234099. The next prime is 99043234111. The reversal of 99043234109 is 90143234099.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61824336025 + 37218898084 = 248645^2 + 192922^2 .

It is a cyclic number.

It is not a de Polignac number, because 99043234109 - 2⁸ = 99043233853 is a prime.

It is a Sophie Germain prime.

Together with 99043234111, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 99043234109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99043233109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49521617054 + 49521617055.

It is an arithmetic number, because the mean of its divisors is an integer number (49521617055).

Almost surely, 2^99043234109 is an apocalyptic number.

It is an amenable number.

99043234109 is a deficient number, since it is larger than the sum of its proper divisors (1).

99043234109 is an equidigital number, since it uses as much as digits as its factorization.

99043234109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209952, while the sum is 44.

The spelling of 99043234109 in words is "ninety-nine billion, forty-three million, two hundred thirty-four thousand, one hundred nine".