128059509113 has 4 divisors (see below), whose sum is σ = 128108936448. Its totient is φ = 128010081780.

The previous prime is 128059509077. The next prime is 128059509131. The reversal of 128059509113 is 311905950821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 128059509113 - 2¹⁸ = 128059246969 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (128059509013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24709781 + ... + 24714962.

It is an arithmetic number, because the mean of its divisors is an integer number (32027234112).

Almost surely, 2^128059509113 is an apocalyptic number.

It is an amenable number.

128059509113 is a deficient number, since it is larger than the sum of its proper divisors (49427335).

128059509113 is an equidigital number, since it uses as much as digits as its factorization.

128059509113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49427334.

The product of its (nonzero) digits is 97200, while the sum is 44.

The spelling of 128059509113 in words is "one hundred twenty-eight billion, fifty-nine million, five hundred nine thousand, one hundred thirteen".