111743 has 4 divisors (see below), whose sum is σ = 112728. Its totient is φ = 110760.

The previous prime is 111733. The next prime is 111751. The reversal of 111743 is 347111.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 347111 = 19 ⋅18269.

It is a cyclic number.

It is not a de Polignac number, because 111743 - 2⁸ = 111487 is a prime.

It is a Duffinian number.

It is a zygodrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 296 + ... + 557.

It is an arithmetic number, because the mean of its divisors is an integer number (28182).

2¹¹¹⁷⁴³ is an apocalyptic number.

111743 is a deficient number, since it is larger than the sum of its proper divisors (985).

111743 is an equidigital number, since it uses as much as digits as its factorization.

111743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984.

The product of its digits is 84, while the sum is 17.

The square root of 111743 is about 334.2798229029. The cubic root of 111743 is about 48.1659476086.

Adding to 111743 its reverse (347111), we get a palindrome (458854).

The spelling of 111743 in words is "one hundred eleven thousand, seven hundred forty-three", and thus it is an iban number.