2203303012321 has 2 divisors, whose sum is σ = 2203303012322. Its totient is φ = 2203303012320.

The previous prime is 2203303012319. The next prime is 2203303012349. The reversal of 2203303012321 is 1232103033022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1695555558225 + 507747454096 = 1302135^2 + 712564^2 .

It is a cyclic number.

It is not a de Polignac number, because 2203303012321 - 2¹ = 2203303012319 is a prime.

Together with 2203303012319, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2203303012292 and 2203303012301.

It is not a weakly prime, because it can be changed into another prime (2203303012021) 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 as a sum of consecutive naturals, namely, 1101651506160 + 1101651506161.

It is an arithmetic number, because the mean of its divisors is an integer number (1101651506161).

Almost surely, 2^{2203303012321} is an apocalyptic number.

It is an amenable number.

2203303012321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2203303012321 is an equidigital number, since it uses as much as digits as its factorization.

2203303012321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 2203303012321 its reverse (1232103033022), we get a palindrome (3435406045343).

The spelling of 2203303012321 in words is "two trillion, two hundred three billion, three hundred three million, twelve thousand, three hundred twenty-one".