11240231 has 4 divisors (see below), whose sum is σ = 11257512. Its totient is φ = 11222952.

The previous prime is 11240227. The next prime is 11240237. The reversal of 11240231 is 13204211.

11240231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11240231 - 2² = 11240227 is a prime.

It is a super-2 number, since 2×11240231² = 252685585866722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11240237) 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, 7625 + ... + 8978.

It is an arithmetic number, because the mean of its divisors is an integer number (2814378).

Almost surely, 2^11240231 is an apocalyptic number.

11240231 is a deficient number, since it is larger than the sum of its proper divisors (17281).

11240231 is an equidigital number, since it uses as much as digits as its factorization.

11240231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17280.

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

The square root of 11240231 is about 3352.6453734327. The cubic root of 11240231 is about 224.0053610005.

Adding to 11240231 its reverse (13204211), we get a palindrome (24444442).

The spelling of 11240231 in words is "eleven million, two hundred forty thousand, two hundred thirty-one".