120005355647 has 2 divisors, whose sum is σ = 120005355648. Its totient is φ = 120005355646.

The previous prime is 120005355529. The next prime is 120005355649. The reversal of 120005355647 is 746553500021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120005355647 - 2⁸ = 120005355391 is a prime.

Together with 120005355649, it forms a pair of twin primes.

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 120005355647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120005355649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60002677823 + 60002677824.

It is an arithmetic number, because the mean of its divisors is an integer number (60002677824).

Almost surely, 2^120005355647 is an apocalyptic number.

120005355647 is a deficient number, since it is larger than the sum of its proper divisors (1).

120005355647 is an equidigital number, since it uses as much as digits as its factorization.

120005355647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126000, while the sum is 38.

Adding to 120005355647 its reverse (746553500021), we get a palindrome (866558855668).

The spelling of 120005355647 in words is "one hundred twenty billion, five million, three hundred fifty-five thousand, six hundred forty-seven".