2002303321 has 2 divisors, whose sum is σ = 2002303322. Its totient is φ = 2002303320.

The previous prime is 2002303291. The next prime is 2002303327. The reversal of 2002303321 is 1233032002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1466890000 + 535413321 = 38300^2 + 23139^2 .

It is a cyclic number.

It is not a de Polignac number, because 2002303321 - 2¹⁵ = 2002270553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2002303295 and 2002303304.

It is not a weakly prime, because it can be changed into another prime (2002303327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001151660 + 1001151661.

It is an arithmetic number, because the mean of its divisors is an integer number (1001151661).

Almost surely, 2^2002303321 is an apocalyptic number.

It is an amenable number.

2002303321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002303321 is an equidigital number, since it uses as much as digits as its factorization.

2002303321 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 2002303321 is about 44747.1040515473. The cubic root of 2002303321 is about 1260.4045314422.

Adding to 2002303321 its reverse (1233032002), we get a palindrome (3235335323).

The spelling of 2002303321 in words is "two billion, two million, three hundred three thousand, three hundred twenty-one".