99434200243 has 4 divisors (see below), whose sum is σ = 113639086000. Its totient is φ = 85229314488.

The previous prime is 99434200219. The next prime is 99434200253. The reversal of 99434200243 is 34200243499.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 99434200243 - 2⁵ = 99434200211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99434200196 and 99434200205.

It is not an unprimeable number, because it can be changed into a prime (99434200253) 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 in 3 ways as a sum of consecutive naturals, for example, 7102442868 + ... + 7102442881.

It is an arithmetic number, because the mean of its divisors is an integer number (28409771500).

Almost surely, 2^99434200243 is an apocalyptic number.

99434200243 is a deficient number, since it is larger than the sum of its proper divisors (14204885757).

99434200243 is a wasteful number, since it uses less digits than its factorization.

99434200243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14204885756.

The product of its (nonzero) digits is 186624, while the sum is 40.

The spelling of 99434200243 in words is "ninety-nine billion, four hundred thirty-four million, two hundred thousand, two hundred forty-three".