20003321003 has 16 divisors (see below), whose sum is σ = 20503368000. Its totient is φ = 19508201856.

The previous prime is 20003320949. The next prime is 20003321047. The reversal of 20003321003 is 30012330002.

It is a cyclic number.

It is not a de Polignac number, because 20003321003 - 2⁸ = 20003320747 is a prime.

It is a super-2 number, since 2×20003321003² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20003321083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6668498 + ... + 6671496.

It is an arithmetic number, because the mean of its divisors is an integer number (1281460500).

Almost surely, 2^20003321003 is an apocalyptic number.

20003321003 is a deficient number, since it is larger than the sum of its proper divisors (500046997).

20003321003 is a wasteful number, since it uses less digits than its factorization.

20003321003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3766.

The product of its (nonzero) digits is 108, while the sum is 14.

Adding to 20003321003 its reverse (30012330002), we get a palindrome (50015651005).

The spelling of 20003321003 in words is "twenty billion, three million, three hundred twenty-one thousand, three".