21110132103 has 32 divisors (see below), whose sum is σ = 28682035200. Its totient is φ = 13808594016.

The previous prime is 21110132101. The next prime is 21110132137. The reversal of 21110132103 is 30123101112.

It is a happy number.

It is not a de Polignac number, because 21110132103 - 2¹ = 21110132101 is a prime.

It is a super-2 number, since 2×21110132103² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21110132101) 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, 44071018 + ... + 44071496.

It is an arithmetic number, because the mean of its divisors is an integer number (896313600).

Almost surely, 2^21110132103 is an apocalyptic number.

21110132103 is a deficient number, since it is larger than the sum of its proper divisors (7571903097).

21110132103 is a wasteful number, since it uses less digits than its factorization.

21110132103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 21110132103 its reverse (30123101112), we get a palindrome (51233233215).

The spelling of 21110132103 in words is "twenty-one billion, one hundred ten million, one hundred thirty-two thousand, one hundred three".