111312223 has 8 divisors (see below), whose sum is σ = 121645440. Its totient is φ = 101014680.

The previous prime is 111312221. The next prime is 111312233. The reversal of 111312223 is 322213111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111312223 - 2¹ = 111312221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111312197 and 111312206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111312221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2163 + ... + 15076.

It is an arithmetic number, because the mean of its divisors is an integer number (15205680).

Almost surely, 2^111312223 is an apocalyptic number.

111312223 is a deficient number, since it is larger than the sum of its proper divisors (10333217).

111312223 is a wasteful number, since it uses less digits than its factorization.

111312223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17837.

The product of its digits is 72, while the sum is 16.

The square root of 111312223 is about 10550.4607956240. The cubic root of 111312223 is about 481.0397354806.

Adding to 111312223 its reverse (322213111), we get a palindrome (433525334).

The spelling of 111312223 in words is "one hundred eleven million, three hundred twelve thousand, two hundred twenty-three".