2112311343 has 16 divisors (see below), whose sum is σ = 2882135520. Its totient is φ = 1375580544.

The previous prime is 2112311321. The next prime is 2112311359. The reversal of 2112311343 is 3431132112.

It is not a de Polignac number, because 2112311343 - 2²⁹ = 1575440431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112311303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7405 + ... + 65417.

It is an arithmetic number, because the mean of its divisors is an integer number (180133470).

Almost surely, 2^2112311343 is an apocalyptic number.

2112311343 is a deficient number, since it is larger than the sum of its proper divisors (769824177).

2112311343 is a wasteful number, since it uses less digits than its factorization.

2112311343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58298.

The product of its digits is 432, while the sum is 21.

The square root of 2112311343 is about 45959.8884137027. Note that the first 3 decimals coincide. The cubic root of 2112311343 is about 1283.0767745673.

Adding to 2112311343 its reverse (3431132112), we get a palindrome (5543443455).

The spelling of 2112311343 in words is "two billion, one hundred twelve million, three hundred eleven thousand, three hundred forty-three".