203220103321 has 2 divisors, whose sum is σ = 203220103322. Its totient is φ = 203220103320.

The previous prime is 203220103319. The next prime is 203220103337. The reversal of 203220103321 is 123301022302.

203220103321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 160356198025 + 42863905296 = 400445^2 + 207036^2 .

It is a cyclic number.

It is not a de Polignac number, because 203220103321 - 2¹ = 203220103319 is a prime.

Together with 203220103319, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (203220103721) 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, 101610051660 + 101610051661.

It is an arithmetic number, because the mean of its divisors is an integer number (101610051661).

Almost surely, 2^203220103321 is an apocalyptic number.

It is an amenable number.

203220103321 is a deficient number, since it is larger than the sum of its proper divisors (1).

203220103321 is an equidigital number, since it uses as much as digits as its factorization.

203220103321 is an odious number, because the sum of its binary digits is odd.

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

Adding to 203220103321 its reverse (123301022302), we get a palindrome (326521125623).

The spelling of 203220103321 in words is "two hundred three billion, two hundred twenty million, one hundred three thousand, three hundred twenty-one".