21230300322303 has 16 divisors (see below), whose sum is σ = 29028103888896. Its totient is φ = 13793744212160.

The previous prime is 21230300322289. The next prime is 21230300322307. The reversal of 21230300322303 is 30322300303212.

It is a cyclic number.

It is not a de Polignac number, because 21230300322303 - 2¹⁸ = 21230300060159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21230300322307) 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 15 ways as a sum of consecutive naturals, for example, 91015551 + ... + 91248512.

It is an arithmetic number, because the mean of its divisors is an integer number (1814256493056).

Almost surely, 2^{21230300322303} is an apocalyptic number.

21230300322303 is a deficient number, since it is larger than the sum of its proper divisors (7797803566593).

21230300322303 is a wasteful number, since it uses less digits than its factorization.

21230300322303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182265054.

The product of its (nonzero) digits is 3888, while the sum is 24.

Adding to 21230300322303 its reverse (30322300303212), we get a palindrome (51552600625515).

The spelling of 21230300322303 in words is "twenty-one trillion, two hundred thirty billion, three hundred million, three hundred twenty-two thousand, three hundred three".