11001223 has 4 divisors (see below), whose sum is σ = 11110248. Its totient is φ = 10892200.

The previous prime is 11001217. The next prime is 11001239. The reversal of 11001223 is 32210011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32210011 = 101 ⋅318911.

It is a cyclic number.

It is not a de Polignac number, because 11001223 - 2⁵ = 11001191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11001253) 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, 54361 + ... + 54562.

It is an arithmetic number, because the mean of its divisors is an integer number (2777562).

Almost surely, 2^11001223 is an apocalyptic number.

11001223 is a deficient number, since it is larger than the sum of its proper divisors (109025).

11001223 is a wasteful number, since it uses less digits than its factorization.

11001223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109024.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 11001223 is about 3316.8091594181. The cubic root of 11001223 is about 222.4062509565.

Adding to 11001223 its reverse (32210011), we get a palindrome (43211234).

The spelling of 11001223 in words is "eleven million, one thousand, two hundred twenty-three".