111223113223 has 4 divisors (see below), whose sum is σ = 111666233448. Its totient is φ = 110779993000.

The previous prime is 111223113193. The next prime is 111223113227. The reversal of 111223113223 is 322311322111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322311322111 = 103 ⋅3129236137.

It is a cyclic number.

It is not a de Polignac number, because 111223113223 - 2²⁹ = 110686242311 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111223113194 and 111223113203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111223113227) 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 3 ways as a sum of consecutive naturals, for example, 221559736 + ... + 221560237.

It is an arithmetic number, because the mean of its divisors is an integer number (27916558362).

Almost surely, 2^111223113223 is an apocalyptic number.

111223113223 is a deficient number, since it is larger than the sum of its proper divisors (443120225).

111223113223 is an equidigital number, since it uses as much as digits as its factorization.

111223113223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443120224.

The product of its digits is 432, while the sum is 22.

Adding to 111223113223 its reverse (322311322111), we get a palindrome (433534435334).

The spelling of 111223113223 in words is "one hundred eleven billion, two hundred twenty-three million, one hundred thirteen thousand, two hundred twenty-three".