20043099999 has 24 divisors (see below), whose sum is σ = 32332907152. Its totient is φ = 12334213440.

The previous prime is 20043099983. The next prime is 20043100027. The reversal of 20043099999 is 99999034002.

It is not a de Polignac number, because 20043099999 - 2⁴ = 20043099983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20043092999) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3169222 + ... + 3175539.

Almost surely, 2^20043099999 is an apocalyptic number.

20043099999 is a deficient number, since it is larger than the sum of its proper divisors (12289807153).

20043099999 is an equidigital number, since it uses as much as digits as its factorization.

20043099999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6344789 (or 6344777 counting only the distinct ones).

The product of its (nonzero) digits is 1417176, while the sum is 54.

The spelling of 20043099999 in words is "twenty billion, forty-three million, ninety-nine thousand, nine hundred ninety-nine".