12133243 has 2 divisors, whose sum is σ = 12133244. Its totient is φ = 12133242.

The previous prime is 12133241. The next prime is 12133271. The reversal of 12133243 is 34233121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12133243 - 2¹ = 12133241 is a prime.

Together with 12133241, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12133243.

It is not a weakly prime, because it can be changed into another prime (12133241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6066621 + 6066622.

It is an arithmetic number, because the mean of its divisors is an integer number (6066622).

Almost surely, 2^12133243 is an apocalyptic number.

12133243 is a deficient number, since it is larger than the sum of its proper divisors (1).

12133243 is an equidigital number, since it uses as much as digits as its factorization.

12133243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 19.

The square root of 12133243 is about 3483.2804940171. The cubic root of 12133243 is about 229.7870934626.

Adding to 12133243 its reverse (34233121), we get a palindrome (46366364).

The spelling of 12133243 in words is "twelve million, one hundred thirty-three thousand, two hundred forty-three".