11151223 has 4 divisors (see below), whose sum is σ = 11157928. Its totient is φ = 11144520.

The previous prime is 11151209. The next prime is 11151241. The reversal of 11151223 is 32215111.

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 not a de Polignac number, because 11151223 - 2⁵ = 11151191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11151197 and 11151206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11151293) 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, 1240 + ... + 4882.

It is an arithmetic number, because the mean of its divisors is an integer number (2789482).

Almost surely, 2^11151223 is an apocalyptic number.

11151223 is a deficient number, since it is larger than the sum of its proper divisors (6705).

11151223 is an equidigital number, since it uses as much as digits as its factorization.

11151223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6704.

The product of its digits is 60, while the sum is 16.

The square root of 11151223 is about 3339.3446961942. The cubic root of 11151223 is about 223.4125164137.

Adding to 11151223 its reverse (32215111), we get a palindrome (43366334).

The spelling of 11151223 in words is "eleven million, one hundred fifty-one thousand, two hundred twenty-three".