11240123 has 4 divisors (see below), whose sum is σ = 11728848. Its totient is φ = 10751400.

The previous prime is 11240087. The next prime is 11240129. The reversal of 11240123 is 32104211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32104211 = 17 ⋅1888483.

It is a cyclic number.

It is not a de Polignac number, because 11240123 - 2⁶ = 11240059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11240098 and 11240107.

It is not an unprimeable number, because it can be changed into a prime (11240129) 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, 244328 + ... + 244373.

It is an arithmetic number, because the mean of its divisors is an integer number (2932212).

Almost surely, 2^11240123 is an apocalyptic number.

11240123 is a deficient number, since it is larger than the sum of its proper divisors (488725).

11240123 is an equidigital number, since it uses as much as digits as its factorization.

11240123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488724.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 11240123 is about 3352.6292667099. The cubic root of 11240123 is about 224.0046435581.

Adding to 11240123 its reverse (32104211), we get a palindrome (43344334).

The spelling of 11240123 in words is "eleven million, two hundred forty thousand, one hundred twenty-three".