21104132034 has 16 divisors (see below), whose sum is σ = 44043406272. Its totient is φ = 6728853648.

The previous prime is 21104132009. The next prime is 21104132051. The reversal of 21104132034 is 43023140112.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 21104132034.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76464109 + ... + 76464384.

It is an arithmetic number, because the mean of its divisors is an integer number (2752712892).

Almost surely, 2^21104132034 is an apocalyptic number.

21104132034 is an abundant number, since it is smaller than the sum of its proper divisors (22939274238).

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

21104132034 is a wasteful number, since it uses less digits than its factorization.

21104132034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152928521.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 21104132034 its reverse (43023140112), we get a palindrome (64127272146).

The spelling of 21104132034 in words is "twenty-one billion, one hundred four million, one hundred thirty-two thousand, thirty-four".