21104013104003 has 8 divisors (see below), whose sum is σ = 21421969187520. Its totient is φ = 20786144397480.

The previous prime is 21104013103961. The next prime is 21104013104051. The reversal of 21104013104003 is 30040131040112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21104013104003 - 2¹⁰ = 21104013102979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21104013100003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21357473 + ... + 22323746.

It is an arithmetic number, because the mean of its divisors is an integer number (2677746148440).

Almost surely, 2^{21104013104003} is an apocalyptic number.

21104013104003 is a deficient number, since it is larger than the sum of its proper divisors (317956083517).

21104013104003 is an equidigital number, since it uses as much as digits as its factorization.

21104013104003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43688497.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 21104013104003 its reverse (30040131040112), we get a palindrome (51144144144115).

The spelling of 21104013104003 in words is "twenty-one trillion, one hundred four billion, thirteen million, one hundred four thousand, three".