20443100203 has 8 divisors (see below), whose sum is σ = 20645900288. Its totient is φ = 20240383464.

The previous prime is 20443100201. The next prime is 20443100243. The reversal of 20443100203 is 30200134402.

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

It is a cyclic number.

It is not a de Polignac number, because 20443100203 - 2¹ = 20443100201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20443100201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 548776 + ... + 584842.

It is an arithmetic number, because the mean of its divisors is an integer number (2580737536).

Almost surely, 2^20443100203 is an apocalyptic number.

20443100203 is a deficient number, since it is larger than the sum of its proper divisors (202800085).

20443100203 is a wasteful number, since it uses less digits than its factorization.

20443100203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41673.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 20443100203 its reverse (30200134402), we get a palindrome (50643234605).

The spelling of 20443100203 in words is "twenty billion, four hundred forty-three million, one hundred thousand, two hundred three".