2003230321 has 2 divisors, whose sum is σ = 2003230322. Its totient is φ = 2003230320.

The previous prime is 2003230277. The next prime is 2003230373. The reversal of 2003230321 is 1230323002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1298593296 + 704637025 = 36036^2 + 26545^2 .

It is a cyclic number.

It is not a de Polignac number, because 2003230321 - 2¹⁹ = 2002706033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2003230295 and 2003230304.

It is not a weakly prime, because it can be changed into another prime (2003239321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001615160 + 1001615161.

It is an arithmetic number, because the mean of its divisors is an integer number (1001615161).

Almost surely, 2^2003230321 is an apocalyptic number.

It is an amenable number.

2003230321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2003230321 is an equidigital number, since it uses as much as digits as its factorization.

2003230321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 2003230321 is about 44757.4610651677. The cubic root of 2003230321 is about 1260.5990099253.

Adding to 2003230321 its reverse (1230323002), we get a palindrome (3233553323).

It can be divided in two parts, 2003 and 230321, that added together give a square (232324 = 482²).

The spelling of 2003230321 in words is "two billion, three million, two hundred thirty thousand, three hundred twenty-one".