21104243023201 has 16 divisors (see below), whose sum is σ = 23356433044224. Its totient is φ = 18942534984384.

The previous prime is 21104243023187. The next prime is 21104243023273. The reversal of 21104243023201 is 10232034240112.

It is a cyclic number.

It is not a de Polignac number, because 21104243023201 - 2⁹ = 21104243022689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21104243023901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12878485 + ... + 14424418.

It is an arithmetic number, because the mean of its divisors is an integer number (1459777065264).

Almost surely, 2^{21104243023201} is an apocalyptic number.

It is an amenable number.

21104243023201 is a deficient number, since it is larger than the sum of its proper divisors (2252190021023).

21104243023201 is a wasteful number, since it uses less digits than its factorization.

21104243023201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27304560.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 21104243023201 its reverse (10232034240112), we get a palindrome (31336277263313).

The spelling of 21104243023201 in words is "twenty-one trillion, one hundred four billion, two hundred forty-three million, twenty-three thousand, two hundred one".