111319 has 4 divisors (see below), whose sum is σ = 119896. Its totient is φ = 102744.

The previous prime is 111317. The next prime is 111323. The reversal of 111319 is 913111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 913111 = 41 ⋅22271.

It is a cyclic number.

It is not a de Polignac number, because 111319 - 2¹ = 111317 is a prime.

It is a super-2 number, since 2×111319² = 24783839522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111317) 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, 4269 + ... + 4294.

It is an arithmetic number, because the mean of its divisors is an integer number (29974).

2¹¹¹³¹⁹ is an apocalyptic number.

111319 is a deficient number, since it is larger than the sum of its proper divisors (8577).

111319 is an equidigital number, since it uses as much as digits as its factorization.

111319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8576.

The product of its digits is 27, while the sum is 16.

The square root of 111319 is about 333.6450209429. The cubic root of 111319 is about 48.1049497631.

The spelling of 111319 in words is "one hundred eleven thousand, three hundred nineteen".