111311113223 has 4 divisors (see below), whose sum is σ = 111312183840. Its totient is φ = 111310042608.

The previous prime is 111311113213. The next prime is 111311113247. The reversal of 111311113223 is 322311113111.

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 a de Polignac number, because none of the positive numbers 2^k-111311113223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111311113195 and 111311113204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111311113213) 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, 360278 + ... + 593651.

It is an arithmetic number, because the mean of its divisors is an integer number (27828045960).

Almost surely, 2^111311113223 is an apocalyptic number.

111311113223 is a deficient number, since it is larger than the sum of its proper divisors (1070617).

111311113223 is an equidigital number, since it uses as much as digits as its factorization.

111311113223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070616.

The product of its digits is 108, while the sum is 20.

Adding to 111311113223 its reverse (322311113111), we get a palindrome (433622226334).

The spelling of 111311113223 in words is "one hundred eleven billion, three hundred eleven million, one hundred thirteen thousand, two hundred twenty-three".