11123132223 has 8 divisors (see below), whose sum is σ = 16949534848. Its totient is φ = 6356075544.

The previous prime is 11123132213. The next prime is 11123132231. The reversal of 11123132223 is 32223132111.

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

It is not a de Polignac number, because 11123132223 - 2⁸ = 11123131967 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 529672963 = 11123132223 / (1 + 1 + 1 + 2 + 3 + 1 + 3 + 2 + 2 + 2 + 3).

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 11123132223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123132213) 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, 264836461 + ... + 264836502.

It is an arithmetic number, because the mean of its divisors is an integer number (2118691856).

Almost surely, 2^11123132223 is an apocalyptic number.

11123132223 is a deficient number, since it is larger than the sum of its proper divisors (5826402625).

11123132223 is an equidigital number, since it uses as much as digits as its factorization.

11123132223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529672973.

The product of its digits is 432, while the sum is 21.

Adding to 11123132223 its reverse (32223132111), we get a palindrome (43346264334).

The spelling of 11123132223 in words is "eleven billion, one hundred twenty-three million, one hundred thirty-two thousand, two hundred twenty-three".