21134113304 has 16 divisors (see below), whose sum is σ = 39628437720. Its totient is φ = 10566529920.

The previous prime is 21134113303. The next prime is 21134113327. The reversal of 21134113304 is 40331143112.

It is a self number, because there is not a number n which added to its sum of digits gives 21134113304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21134113303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144032 + ... + 251024.

Almost surely, 2^21134113304 is an apocalyptic number.

It is an amenable number.

21134113304 is a deficient number, since it is larger than the sum of its proper divisors (18494324416).

21134113304 is a wasteful number, since it uses less digits than its factorization.

21134113304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131690 (or 131686 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 21134113304 its reverse (40331143112), we get a palindrome (61465256416).

The spelling of 21134113304 in words is "twenty-one billion, one hundred thirty-four million, one hundred thirteen thousand, three hundred four".