20002000003 has 4 divisors (see below), whose sum is σ = 20014914400. Its totient is φ = 19989085608.

The previous prime is 20001999977. The next prime is 20002000021. The reversal of 20002000003 is 30000020002.

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 20002000003 - 2²¹ = 19999902851 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20002000003.

It is not an unprimeable number, because it can be changed into a prime (20002000033) 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, 6454875 + ... + 6457972.

It is an arithmetic number, because the mean of its divisors is an integer number (5003728600).

Almost surely, 2^20002000003 is an apocalyptic number.

20002000003 is a deficient number, since it is larger than the sum of its proper divisors (12914397).

20002000003 is a wasteful number, since it uses less digits than its factorization.

20002000003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12914396.

The product of its (nonzero) digits is 12, while the sum is 7.

Adding to 20002000003 its reverse (30000020002), we get a palindrome (50002020005).

The spelling of 20002000003 in words is "twenty billion, two million, three", and thus it is an aban number and an uban number.