21202303012321 has 8 divisors (see below), whose sum is σ = 22318581634400. Its totient is φ = 20086061184000.

The previous prime is 21202303012309. The next prime is 21202303012337. The reversal of 21202303012321 is 12321030320212.

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 21202303012321 - 2⁷ = 21202303012193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21202303012292 and 21202303012301.

It is not an unprimeable number, because it can be changed into a prime (21202303012721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8011680 + ... + 10324321.

It is an arithmetic number, because the mean of its divisors is an integer number (2789822704300).

Almost surely, 2^{21202303012321} is an apocalyptic number.

It is an amenable number.

21202303012321 is a deficient number, since it is larger than the sum of its proper divisors (1116278622079).

21202303012321 is a wasteful number, since it uses less digits than its factorization.

21202303012321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18396879.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21202303012321 its reverse (12321030320212), we get a palindrome (33523333332533).

The spelling of 21202303012321 in words is "twenty-one trillion, two hundred two billion, three hundred three million, twelve thousand, three hundred twenty-one".