21104303401424 has 40 divisors (see below), whose sum is σ = 41346908429088. Its totient is φ = 10434399004800.

The previous prime is 21104303401417. The next prime is 21104303401427. The reversal of 21104303401424 is 42410430340112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21104303401427) 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, 7025282 + ... + 9568865.

Almost surely, 2^{21104303401424} is an apocalyptic number.

It is an amenable number.

21104303401424 is a deficient number, since it is larger than the sum of its proper divisors (20242605027664).

21104303401424 is a wasteful number, since it uses less digits than its factorization.

21104303401424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16595043 (or 16595037 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 21104303401424 its reverse (42410430340112), we get a palindrome (63514733741536).

The spelling of 21104303401424 in words is "twenty-one trillion, one hundred four billion, three hundred three million, four hundred one thousand, four hundred twenty-four".