2303321 has 2 divisors, whose sum is σ = 2303322. Its totient is φ = 2303320.

The previous prime is 2303309. The next prime is 2303359. The reversal of 2303321 is 1233032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2088025 + 215296 = 1445^2 + 464^2 .

It is a cyclic number.

It is not a de Polignac number, because 2303321 - 2¹⁸ = 2041177 is a prime.

It is a Chen prime.

It is a plaindrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 2303296 and 2303305.

It is not a weakly prime, because it can be changed into another prime (2303621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1151660 + 1151661.

It is an arithmetic number, because the mean of its divisors is an integer number (1151661).

2^2303321 is an apocalyptic number.

It is an amenable number.

2303321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2303321 is an equidigital number, since it uses as much as digits as its factorization.

2303321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 2303321 is about 1517.6695951359. The cubic root of 2303321 is about 132.0641140942.

Adding to 2303321 its reverse (1233032), we get a palindrome (3536353).

The spelling of 2303321 in words is "two million, three hundred three thousand, three hundred twenty-one".