21104134110 has 48 divisors (see below), whose sum is σ = 56038222656. Its totient is φ = 5508028224.

The previous prime is 21104134039. The next prime is 21104134141. The reversal of 21104134110 is 1143140112.

21104134110 is a `hidden beast` number, since 211 + 0 + 41 + 3 + 411 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2490349 + ... + 2498808.

It is an arithmetic number, because the mean of its divisors is an integer number (1167462972).

Almost surely, 2^21104134110 is an apocalyptic number.

21104134110 is an abundant number, since it is smaller than the sum of its proper divisors (34934088546).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21104134110 is a wasteful number, since it uses less digits than its factorization.

21104134110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4989217 (or 4989214 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 21104134110 its reverse (1143140112), we get a palindrome (22247274222).

The spelling of 21104134110 in words is "twenty-one billion, one hundred four million, one hundred thirty-four thousand, one hundred ten".