2320321 has 2 divisors, whose sum is σ = 2320322. Its totient is φ = 2320320.

The previous prime is 2320301. The next prime is 2320361. The reversal of 2320321 is 1230232.

It is a happy number.

2320321 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., 2002225 + 318096 = 1415^2 + 564^2 .

It is a cyclic number.

It is not a de Polignac number, because 2320321 - 2⁷ = 2320193 is a prime.

It is not a weakly prime, because it can be changed into another prime (2320301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160160 + 1160161.

It is an arithmetic number, because the mean of its divisors is an integer number (1160161).

2^2320321 is an apocalyptic number.

It is an amenable number.

2320321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2320321 is an equidigital number, since it uses as much as digits as its factorization.

2320321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 2320321 is about 1523.2599909405. The cubic root of 2320321 is about 132.3882242336.

Adding to 2320321 its reverse (1230232), we get a palindrome (3550553).

The spelling of 2320321 in words is "two million, three hundred twenty thousand, three hundred twenty-one".