11123112223 has 8 divisors (see below), whose sum is σ = 11799941328. Its totient is φ = 10448786304.

The previous prime is 11123112211. The next prime is 11123112227. The reversal of 11123112223 is 32221132111.

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 11123112223 - 2⁵ = 11123112191 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11123112223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123112227) 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, 616636 + ... + 634417.

It is an arithmetic number, because the mean of its divisors is an integer number (1474992666).

Almost surely, 2^11123112223 is an apocalyptic number.

11123112223 is a deficient number, since it is larger than the sum of its proper divisors (676829105).

11123112223 is a wasteful number, since it uses less digits than its factorization.

11123112223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251593.

The product of its digits is 144, while the sum is 19.

Adding to 11123112223 its reverse (32221132111), we get a palindrome (43344244334).

The spelling of 11123112223 in words is "eleven billion, one hundred twenty-three million, one hundred twelve thousand, two hundred twenty-three".