128070023 has 2 divisors, whose sum is σ = 128070024. Its totient is φ = 128070022.

The previous prime is 128070001. The next prime is 128070053. The reversal of 128070023 is 320070821.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128070023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128070053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64035011 + 64035012.

It is an arithmetic number, because the mean of its divisors is an integer number (64035012).

Almost surely, 2^128070023 is an apocalyptic number.

128070023 is a deficient number, since it is larger than the sum of its proper divisors (1).

128070023 is an equidigital number, since it uses as much as digits as its factorization.

128070023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 128070023 is about 11316.8026845041. The cubic root of 128070023 is about 504.0603026339.

The spelling of 128070023 in words is "one hundred twenty-eight million, seventy thousand, twenty-three".