2006311 has 4 divisors (see below), whose sum is σ = 2013832. Its totient is φ = 1998792.

The previous prime is 2006299. The next prime is 2006317. The reversal of 2006311 is 1136002.

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

It is a cyclic number.

It is not a de Polignac number, because 2006311 - 2⁷ = 2006183 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2006291 and 2006300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2006317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3345 + ... + 3898.

It is an arithmetic number, because the mean of its divisors is an integer number (503458).

2^2006311 is an apocalyptic number.

2006311 is a deficient number, since it is larger than the sum of its proper divisors (7521).

2006311 is an equidigital number, since it uses as much as digits as its factorization.

2006311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7520.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 2006311 is about 1416.4430803954. The cubic root of 2006311 is about 126.1244885373.

The spelling of 2006311 in words is "two million, six thousand, three hundred eleven".