21200324103 has 32 divisors (see below), whose sum is σ = 35912030720. Its totient is φ = 12108631680.

The previous prime is 21200324077. The next prime is 21200324141. The reversal of 21200324103 is 30142300212.

21200324103 is a `hidden beast` number, since 21 + 200 + 32 + 410 + 3 = 666.

It is not a de Polignac number, because 21200324103 - 2⁵ = 21200324071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21200324143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 382476 + ... + 434382.

It is an arithmetic number, because the mean of its divisors is an integer number (1122250960).

Almost surely, 2^21200324103 is an apocalyptic number.

21200324103 is a deficient number, since it is larger than the sum of its proper divisors (14711706617).

21200324103 is a wasteful number, since it uses less digits than its factorization.

21200324103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54084 (or 54078 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 21200324103 its reverse (30142300212), we get a palindrome (51342624315).

The spelling of 21200324103 in words is "twenty-one billion, two hundred million, three hundred twenty-four thousand, one hundred three".