11440231 has 4 divisors (see below), whose sum is σ = 12480264. Its totient is φ = 10400200.

The previous prime is 11440229. The next prime is 11440241. The reversal of 11440231 is 13204411.

11440231 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 11440231 - 2¹ = 11440229 is a prime.

It is a super-2 number, since 2×11440231² = 261757770666722, 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 (11440211) 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, 520000 + ... + 520021.

It is an arithmetic number, because the mean of its divisors is an integer number (3120066).

Almost surely, 2^11440231 is an apocalyptic number.

11440231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11440231 is a deficient number, since it is larger than the sum of its proper divisors (1040033).

11440231 is a wasteful number, since it uses less digits than its factorization.

11440231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040032.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 11440231 is about 3382.3410531760. The cubic root of 11440231 is about 225.3261508648.

Adding to 11440231 its reverse (13204411), we get a palindrome (24644642).

The spelling of 11440231 in words is "eleven million, four hundred forty thousand, two hundred thirty-one".