20043100499 has 8 divisors (see below), whose sum is σ = 20721650688. Its totient is φ = 19366550280.

The previous prime is 20043100463. The next prime is 20043100543. The reversal of 20043100499 is 99400134002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20043100499 is a prime.

It is a super-2 number, since 2×20043100499² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20043103499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 479597 + ... + 519710.

It is an arithmetic number, because the mean of its divisors is an integer number (2590206336).

Almost surely, 2^20043100499 is an apocalyptic number.

20043100499 is a deficient number, since it is larger than the sum of its proper divisors (678550189).

20043100499 is an equidigital number, since it uses as much as digits as its factorization.

20043100499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999985.

The product of its (nonzero) digits is 7776, while the sum is 32.

The spelling of 20043100499 in words is "twenty billion, forty-three million, one hundred thousand, four hundred ninety-nine".