99943234999 has 4 divisors (see below), whose sum is σ = 99947304520. Its totient is φ = 99939165480.

The previous prime is 99943234967. The next prime is 99943235069.

99943234999 is nontrivially palindromic in base 10.

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 99943234999 - 2⁵ = 99943234967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99943234099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1997697 + ... + 2047114.

It is an arithmetic number, because the mean of its divisors is an integer number (24986826130).

Almost surely, 2^99943234999 is an apocalyptic number.

99943234999 is a deficient number, since it is larger than the sum of its proper divisors (4069521).

99943234999 is a wasteful number, since it uses less digits than its factorization.

99943234999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4069520.

The product of its digits is 153055008, while the sum is 70.

The spelling of 99943234999 in words is "ninety-nine billion, nine hundred forty-three million, two hundred thirty-four thousand, nine hundred ninety-nine".