20223310321 has 2 divisors, whose sum is σ = 20223310322. Its totient is φ = 20223310320.

The previous prime is 20223310309. The next prime is 20223310339. The reversal of 20223310321 is 12301332202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12188160000 + 8035150321 = 110400^2 + 89639^2 .

It is a cyclic number.

It is not a de Polignac number, because 20223310321 - 2³³ = 11633375729 is a prime.

It is not a weakly prime, because it can be changed into another prime (20223310361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10111655160 + 10111655161.

It is an arithmetic number, because the mean of its divisors is an integer number (10111655161).

Almost surely, 2^20223310321 is an apocalyptic number.

It is an amenable number.

20223310321 is a deficient number, since it is larger than the sum of its proper divisors (1).

20223310321 is an equidigital number, since it uses as much as digits as its factorization.

20223310321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20223310321 its reverse (12301332202), we get a palindrome (32524642523).

The spelling of 20223310321 in words is "twenty billion, two hundred twenty-three million, three hundred ten thousand, three hundred twenty-one".