11243123 has 4 divisors (see below), whose sum is σ = 11252448. Its totient is φ = 11233800.

The previous prime is 11243119. The next prime is 11243131. The reversal of 11243123 is 32134211.

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: 32134211 = 3559 ⋅9029.

It is a cyclic number.

It is not a de Polignac number, because 11243123 - 2² = 11243119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11243423) 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, 2528 + ... + 5373.

It is an arithmetic number, because the mean of its divisors is an integer number (2813112).

Almost surely, 2^11243123 is an apocalyptic number.

11243123 is a deficient number, since it is larger than the sum of its proper divisors (9325).

11243123 is an equidigital number, since it uses as much as digits as its factorization.

11243123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9324.

The product of its digits is 144, while the sum is 17.

The square root of 11243123 is about 3353.0766469021. The cubic root of 11243123 is about 224.0245708060.

Adding to 11243123 its reverse (32134211), we get a palindrome (43377334).

The spelling of 11243123 in words is "eleven million, two hundred forty-three thousand, one hundred twenty-three".