21104340230 has 64 divisors (see below), whose sum is σ = 41960540160. Its totient is φ = 7614854016.

The previous prime is 21104340167. The next prime is 21104340263. The reversal of 21104340230 is 3204340112.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 250019 + ... + 323601.

It is an arithmetic number, because the mean of its divisors is an integer number (655633440).

Almost surely, 2^21104340230 is an apocalyptic number.

21104340230 is a deficient number, since it is larger than the sum of its proper divisors (20856199930).

21104340230 is a wasteful number, since it uses less digits than its factorization.

21104340230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73685.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 21104340230 its reverse (3204340112), we get a palindrome (24308680342).

The spelling of 21104340230 in words is "twenty-one billion, one hundred four million, three hundred forty thousand, two hundred thirty".