20002003203 has 24 divisors (see below), whose sum is σ = 33409942608. Its totient is φ = 10550506176.

The previous prime is 20002003193. The next prime is 20002003207. The reversal of 20002003203 is 30230020002.

It is not a de Polignac number, because 20002003203 - 2⁸ = 20002002947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20002003207) 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, 5231476 + ... + 5235297.

It is an arithmetic number, because the mean of its divisors is an integer number (1392080942).

Almost surely, 2^20002003203 is an apocalyptic number.

20002003203 is a deficient number, since it is larger than the sum of its proper divisors (13407939405).

20002003203 is a wasteful number, since it uses less digits than its factorization.

20002003203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10466803 (or 10466796 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

Adding to 20002003203 its reverse (30230020002), we get a palindrome (50232023205).

The spelling of 20002003203 in words is "twenty billion, two million, three thousand, two hundred three".