11101223 has 4 divisors (see below), whose sum is σ = 12687120. Its totient is φ = 9515328.

The previous prime is 11101217. The next prime is 11101231. The reversal of 11101223 is 32210111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11101223 - 2¹⁸ = 10839079 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 (11101523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 792938 + ... + 792951.

It is an arithmetic number, because the mean of its divisors is an integer number (3171780).

Almost surely, 2^11101223 is an apocalyptic number.

11101223 is a deficient number, since it is larger than the sum of its proper divisors (1585897).

11101223 is an equidigital number, since it uses as much as digits as its factorization.

11101223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1585896.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 11101223 is about 3331.8497865300. The cubic root of 11101223 is about 223.0781027743.

Adding to 11101223 its reverse (32210111), we get a palindrome (43311334).

The spelling of 11101223 in words is "eleven million, one hundred one thousand, two hundred twenty-three".