2003423321 has 2 divisors, whose sum is σ = 2003423322. Its totient is φ = 2003423320.

The previous prime is 2003423309. The next prime is 2003423333. The reversal of 2003423321 is 1233243002.

It is a balanced prime because it is at equal distance from previous prime (2003423309) and next prime (2003423333).

It can be written as a sum of positive squares in only one way, i.e., 1313047696 + 690375625 = 36236^2 + 26275^2 .

It is a cyclic number.

It is not a de Polignac number, because 2003423321 - 2³⁰ = 929681497 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2003423293 and 2003423302.

It is not a weakly prime, because it can be changed into another prime (2003423341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001711660 + 1001711661.

It is an arithmetic number, because the mean of its divisors is an integer number (1001711661).

Almost surely, 2^2003423321 is an apocalyptic number.

It is an amenable number.

2003423321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2003423321 is an equidigital number, since it uses as much as digits as its factorization.

2003423321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 2003423321 is about 44759.6170783442. The cubic root of 2003423321 is about 1260.6394925055.

Adding to 2003423321 its reverse (1233243002), we get a palindrome (3236666323).

The spelling of 2003423321 in words is "two billion, three million, four hundred twenty-three thousand, three hundred twenty-one".