2112343 has 4 divisors (see below), whose sum is σ = 2204208. Its totient is φ = 2020480.

The previous prime is 2112337. The next prime is 2112347. The reversal of 2112343 is 3432112.

It is a happy number.

2112343 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2112343 is a prime.

It is a Duffinian number.

2112343 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112347) 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, 45898 + ... + 45943.

It is an arithmetic number, because the mean of its divisors is an integer number (551052).

2^2112343 is an apocalyptic number.

2112343 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2112343 is a deficient number, since it is larger than the sum of its proper divisors (91865).

2112343 is an equidigital number, since it uses as much as digits as its factorization.

2112343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91864.

The product of its digits is 144, while the sum is 16.

The square root of 2112343 is about 1453.3901747294. The cubic root of 2112343 is about 128.3083184317.

Adding to 2112343 its reverse (3432112), we get a palindrome (5544455).

The spelling of 2112343 in words is "two million, one hundred twelve thousand, three hundred forty-three".