12130243 has 4 divisors (see below), whose sum is σ = 12193288. Its totient is φ = 12067200.

The previous prime is 12130169. The next prime is 12130259. The reversal of 12130243 is 34203121.

It is a happy number.

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 12130243 - 2⁹ = 12129731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12133243) 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, 31233 + ... + 31618.

It is an arithmetic number, because the mean of its divisors is an integer number (3048322).

Almost surely, 2^12130243 is an apocalyptic number.

12130243 is a deficient number, since it is larger than the sum of its proper divisors (63045).

12130243 is an equidigital number, since it uses as much as digits as its factorization.

12130243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63044.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 12130243 is about 3482.8498388532. The cubic root of 12130243 is about 229.7681532637.

Adding to 12130243 its reverse (34203121), we get a palindrome (46333364).

The spelling of 12130243 in words is "twelve million, one hundred thirty thousand, two hundred forty-three".