11530243 has 4 divisors (see below), whose sum is σ = 11594128. Its totient is φ = 11466360.

The previous prime is 11530229. The next prime is 11530249. The reversal of 11530243 is 34203511.

11530243 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, and also an emirpimes, since its reverse is a distinct semiprime: 34203511 = 601 ⋅56911.

It is a cyclic number.

It is not a de Polignac number, because 11530243 - 2⁹ = 11529731 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11530243.

It is not an unprimeable number, because it can be changed into a prime (11530249) 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, 31671 + ... + 32032.

It is an arithmetic number, because the mean of its divisors is an integer number (2898532).

Almost surely, 2^11530243 is an apocalyptic number.

11530243 is a deficient number, since it is larger than the sum of its proper divisors (63885).

11530243 is an equidigital number, since it uses as much as digits as its factorization.

11530243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63884.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 11530243 is about 3395.6211508353. The cubic root of 11530243 is about 225.9155648246.

Adding to 11530243 its reverse (34203511), we get a palindrome (45733754).

The spelling of 11530243 in words is "eleven million, five hundred thirty thousand, two hundred forty-three".