20330300321 has 2 divisors, whose sum is σ = 20330300322. Its totient is φ = 20330300320.

The previous prime is 20330300297. The next prime is 20330300327. The reversal of 20330300321 is 12300303302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18350495296 + 1979805025 = 135464^2 + 44495^2 .

It is a cyclic number.

It is not a de Polignac number, because 20330300321 - 2¹⁴ = 20330283937 is a prime.

It is a super-2 number, since 2×20330300321² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20330300321.

It is not a weakly prime, because it can be changed into another prime (20330300327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10165150160 + 10165150161.

It is an arithmetic number, because the mean of its divisors is an integer number (10165150161).

Almost surely, 2^20330300321 is an apocalyptic number.

It is an amenable number.

20330300321 is a deficient number, since it is larger than the sum of its proper divisors (1).

20330300321 is an equidigital number, since it uses as much as digits as its factorization.

20330300321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 17.

Adding to 20330300321 its reverse (12300303302), we get a palindrome (32630603623).

The spelling of 20330300321 in words is "twenty billion, three hundred thirty million, three hundred thousand, three hundred twenty-one".