100100021103 has 16 divisors (see below), whose sum is σ = 148428426240. Its totient is φ = 66673903032.

The previous prime is 100100021083. The next prime is 100100021107. The reversal of 100100021103 is 301120001001.

It is not a de Polignac number, because 100100021103 - 2⁸ = 100100020847 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100100021107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1620351 + ... + 1680992.

It is an arithmetic number, because the mean of its divisors is an integer number (9276776640).

Almost surely, 2^100100021103 is an apocalyptic number.

100100021103 is a deficient number, since it is larger than the sum of its proper divisors (48328405137).

100100021103 is a wasteful number, since it uses less digits than its factorization.

100100021103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3302475 (or 3302469 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

Adding to 100100021103 its reverse (301120001001), we get a palindrome (401220022104).

The spelling of 100100021103 in words is "one hundred billion, one hundred million, twenty-one thousand, one hundred three".