21110003100103 has 8 divisors (see below), whose sum is σ = 21178900884960. Its totient is φ = 21041111854080.

The previous prime is 21110003100037. The next prime is 21110003100119. The reversal of 21110003100103 is 30100130001112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21110003100103 is a prime.

It is a super-2 number, since 2×21110003100103² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21110003100133) 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 7 ways as a sum of consecutive naturals, for example, 4874863 + ... + 8123071.

It is an arithmetic number, because the mean of its divisors is an integer number (2647362610620).

Almost surely, 2^{21110003100103} is an apocalyptic number.

21110003100103 is a deficient number, since it is larger than the sum of its proper divisors (68897784857).

21110003100103 is a wasteful number, since it uses less digits than its factorization.

21110003100103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3269417.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 21110003100103 its reverse (30100130001112), we get a palindrome (51210133101215).

The spelling of 21110003100103 in words is "twenty-one trillion, one hundred ten billion, three million, one hundred thousand, one hundred three".