2011343 has 4 divisors (see below), whose sum is σ = 2016168. Its totient is φ = 2006520.

The previous prime is 2011333. The next prime is 2011363. The reversal of 2011343 is 3431102.

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 2011343 - 2¹⁴ = 1994959 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1721 + ... + 2642.

It is an arithmetic number, because the mean of its divisors is an integer number (504042).

2^2011343 is an apocalyptic number.

2011343 is a deficient number, since it is larger than the sum of its proper divisors (4825).

2011343 is an equidigital number, since it uses as much as digits as its factorization.

2011343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4824.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2011343 is about 1418.2182483666. The cubic root of 2011343 is about 126.2298441829.

Adding to 2011343 its reverse (3431102), we get a palindrome (5442445).

The spelling of 2011343 in words is "two million, eleven thousand, three hundred forty-three".