11143823 has 8 divisors (see below), whose sum is σ = 12420720. Its totient is φ = 9936000.

The previous prime is 11143817. The next prime is 11143871. The reversal of 11143823 is 32834111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11143823 - 2¹⁸ = 10881679 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 (11143883) 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 7 ways as a sum of consecutive naturals, for example, 16928 + ... + 17573.

It is an arithmetic number, because the mean of its divisors is an integer number (1552590).

Almost surely, 2^11143823 is an apocalyptic number.

11143823 is a deficient number, since it is larger than the sum of its proper divisors (1276897).

11143823 is a wasteful number, since it uses less digits than its factorization.

11143823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34537.

The product of its digits is 576, while the sum is 23.

The square root of 11143823 is about 3338.2365104947. The cubic root of 11143823 is about 223.3630863061.

Adding to 11143823 its reverse (32834111), we get a palindrome (43977934).

It can be divided in two parts, 111 and 43823, that added together give a palindrome (43934).

The spelling of 11143823 in words is "eleven million, one hundred forty-three thousand, eight hundred twenty-three".