21303303323330 has 16 divisors (see below), whose sum is σ = 43823938265280. Its totient is φ = 7303989710832.

The previous prime is 21303303323329. The next prime is 21303303323333. The reversal of 21303303323330 is 3332330330312.

It is a junction number, because it is equal to n+sod(n) for n = 21303303323293 and 21303303323302.

It is not an unprimeable number, because it can be changed into a prime (21303303323333) 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, 152166452240 + ... + 152166452379.

It is an arithmetic number, because the mean of its divisors is an integer number (2738996141580).

Almost surely, 2^{21303303323330} is an apocalyptic number.

21303303323330 is an abundant number, since it is smaller than the sum of its proper divisors (22520634941950).

21303303323330 is a wasteful number, since it uses less digits than its factorization.

21303303323330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304332904633.

The product of its (nonzero) digits is 26244, while the sum is 29.

Adding to 21303303323330 its reverse (3332330330312), we get a palindrome (24635633653642).

The spelling of 21303303323330 in words is "twenty-one trillion, three hundred three billion, three hundred three million, three hundred twenty-three thousand, three hundred thirty".