2011313 has 4 divisors (see below), whose sum is σ = 2019060. Its totient is φ = 2003568.

The previous prime is 2011309. The next prime is 2011333. The reversal of 2011313 is 3131102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1056784 + 954529 = 1028^2 + 977^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011313 - 2² = 2011309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2011294 and 2011303.

It is not an unprimeable number, because it can be changed into a prime (2011333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3470 + ... + 4007.

It is an arithmetic number, because the mean of its divisors is an integer number (504765).

2^2011313 is an apocalyptic number.

It is an amenable number.

2011313 is a deficient number, since it is larger than the sum of its proper divisors (7747).

2011313 is an equidigital number, since it uses as much as digits as its factorization.

2011313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7746.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 2011313 is about 1418.2076716758. The cubic root of 2011313 is about 126.2292165899.

Adding to 2011313 its reverse (3131102), we get a palindrome (5142415).

The spelling of 2011313 in words is "two million, eleven thousand, three hundred thirteen".