11124231 has 4 divisors (see below), whose sum is σ = 14832312. Its totient is φ = 7416152.

The previous prime is 11124193. The next prime is 11124259. The reversal of 11124231 is 13242111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13242111 = 3 ⋅4414037.

It is a cyclic number.

It is not a de Polignac number, because 11124231 - 2⁹ = 11123719 is a prime.

It is a super-2 number, since 2×11124231² = 247497030682722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11124231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11124731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1854036 + ... + 1854041.

It is an arithmetic number, because the mean of its divisors is an integer number (3708078).

Almost surely, 2^11124231 is an apocalyptic number.

11124231 is a deficient number, since it is larger than the sum of its proper divisors (3708081).

11124231 is an equidigital number, since it uses as much as digits as its factorization.

11124231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3708080.

The product of its digits is 48, while the sum is 15.

The square root of 11124231 is about 3335.3007360656. The cubic root of 11124231 is about 223.2321110068.

Adding to 11124231 its reverse (13242111), we get a palindrome (24366342).

It can be divided in two parts, 111 and 24231, that added together give a palindrome (24342).

The spelling of 11124231 in words is "eleven million, one hundred twenty-four thousand, two hundred thirty-one".