12120419 has 2 divisors, whose sum is σ = 12120420. Its totient is φ = 12120418.

The previous prime is 12120403. The next prime is 12120431. The reversal of 12120419 is 91402121.

12120419 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (91402121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12120419 - 2⁴ = 12120403 is a prime.

It is a super-2 number, since 2×12120419² = 293809113471122, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12120419.

It is not a weakly prime, because it can be changed into another prime (12120469) 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, 6060209 + 6060210.

It is an arithmetic number, because the mean of its divisors is an integer number (6060210).

Almost surely, 2^12120419 is an apocalyptic number.

12120419 is a deficient number, since it is larger than the sum of its proper divisors (1).

12120419 is an equidigital number, since it uses as much as digits as its factorization.

12120419 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 20.

The square root of 12120419 is about 3481.4392138884. The cubic root of 12120419 is about 229.7061085607.

The spelling of 12120419 in words is "twelve million, one hundred twenty thousand, four hundred nineteen".