128385847240011 has 12 divisors (see below), whose sum is σ = 185449490405088. Its totient is φ = 85589057158704.

The previous prime is 128385847239989. The next prime is 128385847240067. The reversal of 128385847240011 is 110042748583821.

128385847240011 is a `hidden beast` number, since 1 + 2 + 8 + 3 + 8 + 584 + 7 + 2 + 40 + 0 + 11 = 666.

It is not a de Polignac number, because 128385847240011 - 2¹³ = 128385847231819 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 128385847240011.

It is not an unprimeable number, because it can be changed into a prime (128385847240811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125099560 + ... + 126121653.

It is an arithmetic number, because the mean of its divisors is an integer number (15454124200424).

Almost surely, 2^{128385847240011} is an apocalyptic number.

128385847240011 is a deficient number, since it is larger than the sum of its proper divisors (57063643165077).

128385847240011 is a wasteful number, since it uses less digits than its factorization.

128385847240011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251278002 (or 251277999 counting only the distinct ones).

The product of its (nonzero) digits is 3440640, while the sum is 54.

The spelling of 128385847240011 in words is "one hundred twenty-eight trillion, three hundred eighty-five billion, eight hundred forty-seven million, two hundred forty thousand, eleven".