12030243 has 4 divisors (see below), whose sum is σ = 16040328. Its totient is φ = 8020160.

The previous prime is 12030233. The next prime is 12030253. The reversal of 12030243 is 34203021.

12030243 is digitally balanced in base 2 and base 4, because in such bases 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 an interprime number because it is at equal distance from previous prime (12030233) and next prime (12030253).

It is a cyclic number.

It is not a de Polignac number, because 12030243 - 2⁸ = 12029987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12030223) 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, 2005038 + ... + 2005043.

It is an arithmetic number, because the mean of its divisors is an integer number (4010082).

Almost surely, 2^12030243 is an apocalyptic number.

12030243 is a deficient number, since it is larger than the sum of its proper divisors (4010085).

12030243 is an equidigital number, since it uses as much as digits as its factorization.

12030243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4010084.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 12030243 is about 3468.4640692964. The cubic root of 12030243 is about 229.1350182337.

Adding to 12030243 its reverse (34203021), we get a palindrome (46233264).

The spelling of 12030243 in words is "twelve million, thirty thousand, two hundred forty-three".