128032056684201 has 4 divisors (see below), whose sum is σ = 170709408912272. Its totient is φ = 85354704456132.

The previous prime is 128032056684197. The next prime is 128032056684349. The reversal of 128032056684201 is 102486650230821.

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 not a de Polignac number, because 128032056684201 - 2² = 128032056684197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128032056684601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21338676114031 + ... + 21338676114036.

It is an arithmetic number, because the mean of its divisors is an integer number (42677352228068).

Almost surely, 2^{128032056684201} is an apocalyptic number.

It is an amenable number.

128032056684201 is a deficient number, since it is larger than the sum of its proper divisors (42677352228071).

128032056684201 is an equidigital number, since it uses as much as digits as its factorization.

128032056684201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42677352228070.

The product of its (nonzero) digits is 1105920, while the sum is 48.

The spelling of 128032056684201 in words is "one hundred twenty-eight trillion, thirty-two billion, fifty-six million, six hundred eighty-four thousand, two hundred one".