20000500003 has 8 divisors (see below), whose sum is σ = 21821236416. Its totient is φ = 18180181800.

The previous prime is 20000499943. The next prime is 20000500007. The reversal of 20000500003 is 30000500002.

20000500003 is a nontrivial binomial coefficient, being equal to C(200003, 2).

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

It is not a de Polignac number, because 20000500003 - 2¹³ = 20000491811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20000500007) 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, 1 + ... + 200002.

It is an arithmetic number, because the mean of its divisors is an integer number (2727654552).

Almost surely, 2^20000500003 is an apocalyptic number.

20000500003 is the 200002-nd triangular number.

20000500003 is the 66668-th centered nonagonal number.

20000500003 is a deficient number, since it is larger than the sum of its proper divisors (1820736413).

20000500003 is a wasteful number, since it uses less digits than its factorization.

20000500003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209105.

The product of its (nonzero) digits is 30, while the sum is 10.

Subtracting 20000500003 from its reverse (30000500002), we obtain a palindrome (9999999999).

The spelling of 20000500003 in words is "twenty billion, five hundred thousand, three".