2321443 has 2 divisors, whose sum is σ = 2321444. Its totient is φ = 2321442.

The previous prime is 2321399. The next prime is 2321507. The reversal of 2321443 is 3441232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2321443 - 2¹⁷ = 2190371 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2321443.

It is not a weakly prime, because it can be changed into another prime (2321243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160721 + 1160722.

It is an arithmetic number, because the mean of its divisors is an integer number (1160722).

2^2321443 is an apocalyptic number.

2321443 is a deficient number, since it is larger than the sum of its proper divisors (1).

2321443 is an equidigital number, since it uses as much as digits as its factorization.

2321443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 19.

The square root of 2321443 is about 1523.6282354958. The cubic root of 2321443 is about 132.4095597373.

Adding to 2321443 its reverse (3441232), we get a palindrome (5762675).

The spelling of 2321443 in words is "two million, three hundred twenty-one thousand, four hundred forty-three".