21303333122303 has 8 divisors (see below), whose sum is σ = 21312401328000. Its totient is φ = 21294266029848.

The previous prime is 21303333122297. The next prime is 21303333122321. The reversal of 21303333122303 is 30322133330312.

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 21303333122303 - 2⁸ = 21303333122047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21303333122333) 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, 39188048 + ... + 39727946.

It is an arithmetic number, because the mean of its divisors is an integer number (2664050166000).

Almost surely, 2^{21303333122303} is an apocalyptic number.

21303333122303 is a deficient number, since it is larger than the sum of its proper divisors (9068205697).

21303333122303 is a wasteful number, since it uses less digits than its factorization.

21303333122303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556621.

The product of its (nonzero) digits is 17496, while the sum is 29.

Adding to 21303333122303 its reverse (30322133330312), we get a palindrome (51625466452615).

The spelling of 21303333122303 in words is "twenty-one trillion, three hundred three billion, three hundred thirty-three million, one hundred twenty-two thousand, three hundred three".