12120307 has 2 divisors, whose sum is σ = 12120308. Its totient is φ = 12120306.

The previous prime is 12120301. The next prime is 12120343. The reversal of 12120307 is 70302121.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (70302121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12120307 - 2⁷ = 12120179 is a prime.

It is not a weakly prime, because it can be changed into another prime (12120301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060153 + 6060154.

It is an arithmetic number, because the mean of its divisors is an integer number (6060154).

Almost surely, 2^12120307 is an apocalyptic number.

12120307 is a deficient number, since it is larger than the sum of its proper divisors (1).

12120307 is an equidigital number, since it uses as much as digits as its factorization.

12120307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 12120307 is about 3481.4231285496. The cubic root of 12120307 is about 229.7054010174.

Adding to 12120307 its reverse (70302121), we get a palindrome (82422428).

The spelling of 12120307 in words is "twelve million, one hundred twenty thousand, three hundred seven".