21332110103 has 16 divisors (see below), whose sum is σ = 22847094240. Its totient is φ = 19857052800.

The previous prime is 21332110049. The next prime is 21332110109. The reversal of 21332110103 is 30101123312.

It is a cyclic number.

It is not a de Polignac number, because 21332110103 - 2⁶ = 21332110039 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 (21332110109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1146293 + ... + 1164753.

It is an arithmetic number, because the mean of its divisors is an integer number (1427943390).

Almost surely, 2^21332110103 is an apocalyptic number.

21332110103 is a deficient number, since it is larger than the sum of its proper divisors (1514984137).

21332110103 is a wasteful number, since it uses less digits than its factorization.

21332110103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19538.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 21332110103 its reverse (30101123312), we get a palindrome (51433233415).

The spelling of 21332110103 in words is "twenty-one billion, three hundred thirty-two million, one hundred ten thousand, one hundred three".