11145223 has 2 divisors, whose sum is σ = 11145224. Its totient is φ = 11145222.

The previous prime is 11145221. The next prime is 11145247. The reversal of 11145223 is 32254111.

It is a weak prime.

It is an emirp because it is prime and its reverse (32254111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11145223 - 2¹ = 11145221 is a prime.

Together with 11145221, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 11145223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11145221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5572611 + 5572612.

It is an arithmetic number, because the mean of its divisors is an integer number (5572612).

Almost surely, 2^11145223 is an apocalyptic number.

11145223 is a deficient number, since it is larger than the sum of its proper divisors (1).

11145223 is an equidigital number, since it uses as much as digits as its factorization.

11145223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 240, while the sum is 19.

The square root of 11145223 is about 3338.4461954628. The cubic root of 11145223 is about 223.3724396261.

Adding to 11145223 its reverse (32254111), we get a palindrome (43399334).

It can be divided in two parts, 11145 and 223, that multiplied together give a triangular number (2485335 = T₂₂₂₉).

The spelling of 11145223 in words is "eleven million, one hundred forty-five thousand, two hundred twenty-three".