21330302231303 has 16 divisors (see below), whose sum is σ = 23119218931200. Its totient is φ = 19562794859520.

The previous prime is 21330302231279. The next prime is 21330302231333. The reversal of 21330302231303 is 30313220303312.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 21330302231303 - 2¹² = 21330302227207 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 (21330302231333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3122858 + ... + 7239671.

It is an arithmetic number, because the mean of its divisors is an integer number (1444951183200).

Almost surely, 2^{21330302231303} is an apocalyptic number.

21330302231303 is a deficient number, since it is larger than the sum of its proper divisors (1788916699897).

21330302231303 is a wasteful number, since it uses less digits than its factorization.

21330302231303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10363562.

The product of its (nonzero) digits is 5832, while the sum is 26.

Adding to 21330302231303 its reverse (30313220303312), we get a palindrome (51643522534615).

The spelling of 21330302231303 in words is "twenty-one trillion, three hundred thirty billion, three hundred two million, two hundred thirty-one thousand, three hundred three".