2001013303 has 2 divisors, whose sum is σ = 2001013304. Its totient is φ = 2001013302.

The previous prime is 2001013283. The next prime is 2001013307. The reversal of 2001013303 is 3033101002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2001013303 - 2⁹ = 2001012791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2001013307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000506651 + 1000506652.

It is an arithmetic number, because the mean of its divisors is an integer number (1000506652).

Almost surely, 2^2001013303 is an apocalyptic number.

2001013303 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001013303 is an equidigital number, since it uses as much as digits as its factorization.

2001013303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 2001013303 is about 44732.6871873354. The cubic root of 2001013303 is about 1260.1337942664.

Adding to 2001013303 its reverse (3033101002), we get a palindrome (5034114305).

The spelling of 2001013303 in words is "two billion, one million, thirteen thousand, three hundred three".