11823123 has 8 divisors (see below), whose sum is σ = 16976848. Its totient is φ = 7275744.

The previous prime is 11823113. The next prime is 11823139. The reversal of 11823123 is 32132811.

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

It is not a de Polignac number, because 11823123 - 2⁴ = 11823107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11823123.

It is not an unprimeable number, because it can be changed into a prime (11823103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151540 + ... + 151617.

It is an arithmetic number, because the mean of its divisors is an integer number (2122106).

Almost surely, 2^11823123 is an apocalyptic number.

11823123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11823123 is a deficient number, since it is larger than the sum of its proper divisors (5153725).

11823123 is a wasteful number, since it uses less digits than its factorization.

11823123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303173.

The product of its digits is 288, while the sum is 21.

The square root of 11823123 is about 3438.4768430222. The cubic root of 11823123 is about 227.8124226678.

Adding to 11823123 its reverse (32132811), we get a palindrome (43955934).

The spelling of 11823123 in words is "eleven million, eight hundred twenty-three thousand, one hundred twenty-three".