111047 has 4 divisors (see below), whose sum is σ = 111720. Its totient is φ = 110376.

The previous prime is 111043. The next prime is 111049. The reversal of 111047 is 740111.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 111047 - 2² = 111043 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 111047.

It is not an unprimeable number, because it can be changed into a prime (111043) 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, 104 + ... + 482.

It is an arithmetic number, because the mean of its divisors is an integer number (27930).

2¹¹¹⁰⁴⁷ is an apocalyptic number.

111047 is a deficient number, since it is larger than the sum of its proper divisors (673).

111047 is an equidigital number, since it uses as much as digits as its factorization.

111047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 111047 is about 333.2371527906. The cubic root of 111047 is about 48.0657374757.

Adding to 111047 its reverse (740111), we get a palindrome (851158).

It can be divided in two parts, 11104 and 7, that added together give a palindrome (11111).

The spelling of 111047 in words is "one hundred eleven thousand, forty-seven", and thus it is an iban number.