1200240047 has 2 divisors, whose sum is σ = 1200240048. Its totient is φ = 1200240046.

The previous prime is 1200240031. The next prime is 1200240049. The reversal of 1200240047 is 7400420021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1200240047 - 2⁴ = 1200240031 is a prime.

Together with 1200240049, 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 (1200240049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600120023 + 600120024.

It is an arithmetic number, because the mean of its divisors is an integer number (600120024).

Almost surely, 2^1200240047 is an apocalyptic number.

1200240047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200240047 is an equidigital number, since it uses as much as digits as its factorization.

1200240047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 1200240047 is about 34644.4807581237. The cubic root of 1200240047 is about 1062.7294222366.

Adding to 1200240047 its reverse (7400420021), we get a palindrome (8600660068).

The spelling of 1200240047 in words is "one billion, two hundred million, two hundred forty thousand, forty-seven".