2011303 has 6 divisors (see below), whose sum is σ = 2339736. Its totient is φ = 1723932.

The previous prime is 2011291. The next prime is 2011309. The reversal of 2011303 is 3031102.

It is a de Polignac number, because none of the positive numbers 2^k-2011303 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2011303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011309) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20475 + ... + 20572.

It is an arithmetic number, because the mean of its divisors is an integer number (389956).

2^2011303 is an apocalyptic number.

2011303 is a deficient number, since it is larger than the sum of its proper divisors (328433).

2011303 is an equidigital number, since it uses as much as digits as its factorization.

2011303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41061 (or 41054 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 2011303 is about 1418.2041460946. The cubic root of 2011303 is about 126.2290073909.

Adding to 2011303 its reverse (3031102), we get a palindrome (5042405).

The spelling of 2011303 in words is "two million, eleven thousand, three hundred three".