20000100021103 has 32 divisors (see below), whose sum is σ = 20415172608000. Its totient is φ = 19589310380640.

The previous prime is 20000100021071. The next prime is 20000100021107. The reversal of 20000100021103 is 30112000100002.

It is a cyclic number.

It is not a de Polignac number, because 20000100021103 - 2⁵ = 20000100021071 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 20000100021103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000100021107) 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, 10487728476 + ... + 10487730382.

It is an arithmetic number, because the mean of its divisors is an integer number (637974144000).

Almost surely, 2^{20000100021103} is an apocalyptic number.

20000100021103 is a deficient number, since it is larger than the sum of its proper divisors (415072586897).

20000100021103 is a wasteful number, since it uses less digits than its factorization.

20000100021103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3675.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 20000100021103 its reverse (30112000100002), we get a palindrome (50112100121105).

The spelling of 20000100021103 in words is "twenty trillion, one hundred million, twenty-one thousand, one hundred three".