20000030003 has 4 divisors (see below), whose sum is σ = 20689686240. Its totient is φ = 19310373768.

The previous prime is 20000029957. The next prime is 20000030041. The reversal of 20000030003 is 30003000002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20000030003 - 2²⁰ = 19998981427 is a prime.

It is a Duffinian number.

20000030003 is a modest number, since divided by 30003 gives 200 as remainder.

It is not an unprimeable number, because it can be changed into a prime (20000030503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344828075 + ... + 344828132.

It is an arithmetic number, because the mean of its divisors is an integer number (5172421560).

Almost surely, 2^20000030003 is an apocalyptic number.

20000030003 is a deficient number, since it is larger than the sum of its proper divisors (689656237).

20000030003 is an equidigital number, since it uses as much as digits as its factorization.

20000030003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689656236.

The product of its (nonzero) digits is 18, while the sum is 8.

Adding to 20000030003 its reverse (30003000002), we get a palindrome (50003030005).

The spelling of 20000030003 in words is "twenty billion, thirty thousand, three".