12012443 has 2 divisors, whose sum is σ = 12012444. Its totient is φ = 12012442.

The previous prime is 12012439. The next prime is 12012449. The reversal of 12012443 is 34421021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12012443 - 2² = 12012439 is a prime.

It is not a weakly prime, because it can be changed into another prime (12012449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6006221 + 6006222.

It is an arithmetic number, because the mean of its divisors is an integer number (6006222).

Almost surely, 2^12012443 is an apocalyptic number.

12012443 is a deficient number, since it is larger than the sum of its proper divisors (1).

12012443 is an equidigital number, since it uses as much as digits as its factorization.

12012443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 12012443 is about 3465.8971421553. The cubic root of 12012443 is about 229.0219527272.

Adding to 12012443 its reverse (34421021), we get a palindrome (46433464).

The spelling of 12012443 in words is "twelve million, twelve thousand, four hundred forty-three".