2321243 has 2 divisors, whose sum is σ = 2321244. Its totient is φ = 2321242.

The previous prime is 2321239. The next prime is 2321273. The reversal of 2321243 is 3421232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2321243 - 2² = 2321239 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (2321213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160621 + 1160622.

It is an arithmetic number, because the mean of its divisors is an integer number (1160622).

2^2321243 is an apocalyptic number.

2321243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2321243 is an equidigital number, since it uses as much as digits as its factorization.

2321243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 17.

The square root of 2321243 is about 1523.5626012737. The cubic root of 2321243 is about 132.4057571207.

Adding to 2321243 its reverse (3421232), we get a palindrome (5742475).

The spelling of 2321243 in words is "two million, three hundred twenty-one thousand, two hundred forty-three".