20003021103 has 16 divisors (see below), whose sum is σ = 28732032000. Its totient is φ = 12305374944.

The previous prime is 20003021089. The next prime is 20003021131. The reversal of 20003021103 is 30112030002.

It is a happy number.

It is not a de Polignac number, because 20003021103 - 2³⁰ = 18929279279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20003025103) 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, 31450 + ... + 202472.

It is an arithmetic number, because the mean of its divisors is an integer number (1795752000).

Almost surely, 2^20003021103 is an apocalyptic number.

20003021103 is a deficient number, since it is larger than the sum of its proper divisors (8729010897).

20003021103 is a wasteful number, since it uses less digits than its factorization.

20003021103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174038.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 20003021103 its reverse (30112030002), we get a palindrome (50115051105).

The spelling of 20003021103 in words is "twenty billion, three million, twenty-one thousand, one hundred three".