12120443 has 2 divisors, whose sum is σ = 12120444. Its totient is φ = 12120442.

The previous prime is 12120431. The next prime is 12120469. The reversal of 12120443 is 34402121.

12120443 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12120443 - 2¹⁶ = 12054907 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12120403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060221 + 6060222.

It is an arithmetic number, because the mean of its divisors is an integer number (6060222).

Almost surely, 2^12120443 is an apocalyptic number.

12120443 is a deficient number, since it is larger than the sum of its proper divisors (1).

12120443 is an equidigital number, since it uses as much as digits as its factorization.

12120443 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 12120443 is about 3481.4426607371. The cubic root of 12120443 is about 229.7062601765.

Subtracting from 12120443 its sum of digits (17), we obtain a triangular number (12120426 = T₄₉₂₃).

Adding to 12120443 its reverse (34402121), we get a palindrome (46522564).

The spelling of 12120443 in words is "twelve million, one hundred twenty thousand, four hundred forty-three".