11111122222223 has 8 divisors (see below), whose sum is σ = 11254035041280. Its totient is φ = 10968266045880.

The previous prime is 11111122222181. The next prime is 11111122222241. The reversal of 11111122222223 is 32222222111111.

11111122222223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11111122222223 - 2¹⁸ = 11111121960079 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111122222253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13765763 + ... + 14550548.

It is an arithmetic number, because the mean of its divisors is an integer number (1406754380160).

Almost surely, 2^{11111122222223} is an apocalyptic number.

11111122222223 is a deficient number, since it is larger than the sum of its proper divisors (142912819057).

11111122222223 is an equidigital number, since it uses as much as digits as its factorization.

11111122222223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28321357.

The product of its digits is 384, while the sum is 23.

Adding to 11111122222223 its reverse (32222222111111), we get a palindrome (43333344333334).

The spelling of 11111122222223 in words is "eleven trillion, one hundred eleven billion, one hundred twenty-two million, two hundred twenty-two thousand, two hundred twenty-three".