21113002103 has 8 divisors (see below), whose sum is σ = 22428106800. Its totient is φ = 19818286848.

The previous prime is 21113002091. The next prime is 21113002133. The reversal of 21113002103 is 30120031112.

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

It is a cyclic number.

It is not a de Polignac number, because 21113002103 - 2¹² = 21112998007 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 (21113002133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5095226 + ... + 5099367.

It is an arithmetic number, because the mean of its divisors is an integer number (2803513350).

Almost surely, 2^21113002103 is an apocalyptic number.

21113002103 is a deficient number, since it is larger than the sum of its proper divisors (1315104697).

21113002103 is a wasteful number, since it uses less digits than its factorization.

21113002103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10194721.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 21113002103 its reverse (30120031112), we get a palindrome (51233033215).

The spelling of 21113002103 in words is "twenty-one billion, one hundred thirteen million, two thousand, one hundred three".