12120047 has 2 divisors, whose sum is σ = 12120048. Its totient is φ = 12120046.

The previous prime is 12120019. The next prime is 12120049. The reversal of 12120047 is 74002121.

It is a strong prime.

It is an emirp because it is prime and its reverse (74002121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12120047 - 2⁶ = 12119983 is a prime.

Together with 12120049, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12120049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060023 + 6060024.

It is an arithmetic number, because the mean of its divisors is an integer number (6060024).

Almost surely, 2^12120047 is an apocalyptic number.

12120047 is a deficient number, since it is larger than the sum of its proper divisors (1).

12120047 is an equidigital number, since it uses as much as digits as its factorization.

12120047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 12120047 is about 3481.3857872979. The cubic root of 12120047 is about 229.7037584894.

Adding to 12120047 its reverse (74002121), we get a palindrome (86122168).

The spelling of 12120047 in words is "twelve million, one hundred twenty thousand, forty-seven".