11251223 has 4 divisors (see below), whose sum is σ = 11258208. Its totient is φ = 11244240.

The previous prime is 11251213. The next prime is 11251277. The reversal of 11251223 is 32215211.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 32215211 = 7 ⋅4602173.

It is a cyclic number.

It is not a de Polignac number, because 11251223 - 2¹⁰ = 11250199 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 (11251213) 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, 290 + ... + 4752.

It is an arithmetic number, because the mean of its divisors is an integer number (2814552).

Almost surely, 2^11251223 is an apocalyptic number.

11251223 is a deficient number, since it is larger than the sum of its proper divisors (6985).

11251223 is an equidigital number, since it uses as much as digits as its factorization.

11251223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6984.

The product of its digits is 120, while the sum is 17.

The square root of 11251223 is about 3354.2842753708. The cubic root of 11251223 is about 224.0783566751.

Adding to 11251223 its reverse (32215211), we get a palindrome (43466434).

The spelling of 11251223 in words is "eleven million, two hundred fifty-one thousand, two hundred twenty-three".