21141104204 has 12 divisors (see below), whose sum is σ = 40360289928. Its totient is φ = 9609592800.

The previous prime is 21141104111. The next prime is 21141104207. The reversal of 21141104204 is 40240114112.

It is not an unprimeable number, because it can be changed into a prime (21141104207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240239777 + ... + 240239864.

It is an arithmetic number, because the mean of its divisors is an integer number (3363357494).

Almost surely, 2^21141104204 is an apocalyptic number.

It is an amenable number.

21141104204 is a deficient number, since it is larger than the sum of its proper divisors (19219185724).

21141104204 is a wasteful number, since it uses less digits than its factorization.

21141104204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480479656 (or 480479654 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 21141104204 its reverse (40240114112), we get a palindrome (61381218316).

The spelling of 21141104204 in words is "twenty-one billion, one hundred forty-one million, one hundred four thousand, two hundred four".