128008071001 has 2 divisors, whose sum is σ = 128008071002. Its totient is φ = 128008071000.

The previous prime is 128008070999. The next prime is 128008071041. The reversal of 128008071001 is 100170800821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67314821401 + 60693249600 = 259451^2 + 246360^2 .

It is a cyclic number.

It is not a de Polignac number, because 128008071001 - 2¹ = 128008070999 is a prime.

Together with 128008070999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (128008071041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64004035500 + 64004035501.

It is an arithmetic number, because the mean of its divisors is an integer number (64004035501).

Almost surely, 2^128008071001 is an apocalyptic number.

It is an amenable number.

128008071001 is a deficient number, since it is larger than the sum of its proper divisors (1).

128008071001 is an equidigital number, since it uses as much as digits as its factorization.

128008071001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 28.

Adding to 128008071001 its reverse (100170800821), we get a palindrome (228178871822).

The spelling of 128008071001 in words is "one hundred twenty-eight billion, eight million, seventy-one thousand, one".