128012000117 has 2 divisors, whose sum is σ = 128012000118. Its totient is φ = 128012000116.

The previous prime is 128012000087. The next prime is 128012000147. The reversal of 128012000117 is 711000210821.

It is a balanced prime because it is at equal distance from previous prime (128012000087) and next prime (128012000147).

It can be written as a sum of positive squares in only one way, i.e., 116380593316 + 11631406801 = 341146^2 + 107849^2 .

It is a cyclic number.

It is not a de Polignac number, because 128012000117 - 2¹⁴ = 128011983733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 128012000092 and 128012000101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128012000147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64006000058 + 64006000059.

It is an arithmetic number, because the mean of its divisors is an integer number (64006000059).

Almost surely, 2^128012000117 is an apocalyptic number.

It is an amenable number.

128012000117 is a deficient number, since it is larger than the sum of its proper divisors (1).

128012000117 is an equidigital number, since it uses as much as digits as its factorization.

128012000117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 23.

Adding to 128012000117 its reverse (711000210821), we get a palindrome (839012210938).

The spelling of 128012000117 in words is "one hundred twenty-eight billion, twelve million, one hundred seventeen", and thus it is an aban number.