21324003401103 has 32 divisors (see below), whose sum is σ = 31684432651200. Its totient is φ = 12666156711936.

The previous prime is 21324003401053. The next prime is 21324003401251. The reversal of 21324003401103 is 30110430042312.

It is a happy number.

It is not a de Polignac number, because 21324003401103 - 2⁶ = 21324003401039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21324003401303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 933301 + ... + 6596897.

It is an arithmetic number, because the mean of its divisors is an integer number (990138520350).

Almost surely, 2^{21324003401103} is an apocalyptic number.

21324003401103 is a deficient number, since it is larger than the sum of its proper divisors (10360429250097).

21324003401103 is a wasteful number, since it uses less digits than its factorization.

21324003401103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5666971.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 21324003401103 its reverse (30110430042312), we get a palindrome (51434433443415).

The spelling of 21324003401103 in words is "twenty-one trillion, three hundred twenty-four billion, three million, four hundred one thousand, one hundred three".