2003323043 has 2 divisors, whose sum is σ = 2003323044. Its totient is φ = 2003323042.

The previous prime is 2003323039. The next prime is 2003323067. The reversal of 2003323043 is 3403233002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2003323043 - 2² = 2003323039 is a prime.

It is a super-2 number, since 2×2003323043² = 8026606429229559698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2003325043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001661521 + 1001661522.

It is an arithmetic number, because the mean of its divisors is an integer number (1001661522).

Almost surely, 2^2003323043 is an apocalyptic number.

2003323043 is a deficient number, since it is larger than the sum of its proper divisors (1).

2003323043 is an equidigital number, since it uses as much as digits as its factorization.

2003323043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 20.

The square root of 2003323043 is about 44758.4968804807. The cubic root of 2003323043 is about 1260.6184590881.

Adding to 2003323043 its reverse (3403233002), we get a palindrome (5406556045).

The spelling of 2003323043 in words is "two billion, three million, three hundred twenty-three thousand, forty-three".