2321603 has 2 divisors, whose sum is σ = 2321604. Its totient is φ = 2321602.

The previous prime is 2321587. The next prime is 2321623. The reversal of 2321603 is 3061232.

2321603 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 is a cyclic number.

It is not a de Polignac number, because 2321603 - 2⁴ = 2321587 is a prime.

It is not a weakly prime, because it can be changed into another prime (2321623) 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, 1160801 + 1160802.

It is an arithmetic number, because the mean of its divisors is an integer number (1160802).

2^2321603 is an apocalyptic number.

2321603 is a deficient number, since it is larger than the sum of its proper divisors (1).

2321603 is an equidigital number, since it uses as much as digits as its factorization.

2321603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2321603 is about 1523.6807408378. The cubic root of 2321603 is about 132.4126016732.

Adding to 2321603 its reverse (3061232), we get a palindrome (5382835).

The spelling of 2321603 in words is "two million, three hundred twenty-one thousand, six hundred three".