111299 has 4 divisors (see below), whose sum is σ = 117864. Its totient is φ = 104736.

The previous prime is 111271. The next prime is 111301. The reversal of 111299 is 992111.

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 111299 - 2⁸ = 111043 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (111229) 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, 3257 + ... + 3290.

It is an arithmetic number, because the mean of its divisors is an integer number (29466).

2¹¹¹²⁹⁹ is an apocalyptic number.

111299 is a deficient number, since it is larger than the sum of its proper divisors (6565).

111299 is an equidigital number, since it uses as much as digits as its factorization.

111299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6564.

The product of its digits is 162, while the sum is 23.

The square root of 111299 is about 333.6150476223. The cubic root of 111299 is about 48.1020686838.

The spelling of 111299 in words is "one hundred eleven thousand, two hundred ninety-nine".