12120343 has 2 divisors, whose sum is σ = 12120344. Its totient is φ = 12120342.

The previous prime is 12120307. The next prime is 12120391. The reversal of 12120343 is 34302121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12120343 - 2²¹ = 10023191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12120443) 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 as a sum of consecutive naturals, namely, 6060171 + 6060172.

It is an arithmetic number, because the mean of its divisors is an integer number (6060172).

Almost surely, 2^12120343 is an apocalyptic number.

12120343 is a deficient number, since it is larger than the sum of its proper divisors (1).

12120343 is an equidigital number, since it uses as much as digits as its factorization.

12120343 is an odious number, because the sum of its binary digits is odd.

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

The square root of 12120343 is about 3481.4282988452. The cubic root of 12120343 is about 229.7056284425.

Adding to 12120343 its reverse (34302121), we get a palindrome (46422464).

The spelling of 12120343 in words is "twelve million, one hundred twenty thousand, three hundred forty-three".