21322121120003 has 4 divisors (see below), whose sum is σ = 23260495767288. Its totient is φ = 19383746472720.

The previous prime is 21322121119993. The next prime is 21322121120051. The reversal of 21322121120003 is 30002112122312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21322121120003 - 2⁴⁰ = 20222609492227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21322121120203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 969187323626 + ... + 969187323647.

It is an arithmetic number, because the mean of its divisors is an integer number (5815123941822).

Almost surely, 2^{21322121120003} is an apocalyptic number.

21322121120003 is a deficient number, since it is larger than the sum of its proper divisors (1938374647285).

21322121120003 is a wasteful number, since it uses less digits than its factorization.

21322121120003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1938374647284.

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

Adding to 21322121120003 its reverse (30002112122312), we get a palindrome (51324233242315).

The spelling of 21322121120003 in words is "twenty-one trillion, three hundred twenty-two billion, one hundred twenty-one million, one hundred twenty thousand, three".