128012000317 has 2 divisors, whose sum is σ = 128012000318. Its totient is φ = 128012000316.

The previous prime is 128012000279. The next prime is 128012000323. The reversal of 128012000317 is 713000210821.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94561785081 + 33450215236 = 307509^2 + 182894^2 .

It is a cyclic number.

It is not a de Polignac number, because 128012000317 - 2¹⁹ = 128011476029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 128012000291 and 128012000300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128012000117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64006000158 + 64006000159.

It is an arithmetic number, because the mean of its divisors is an integer number (64006000159).

Almost surely, 2^128012000317 is an apocalyptic number.

It is an amenable number.

128012000317 is a deficient number, since it is larger than the sum of its proper divisors (1).

128012000317 is an equidigital number, since it uses as much as digits as its factorization.

128012000317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 25.

The spelling of 128012000317 in words is "one hundred twenty-eight billion, twelve million, three hundred seventeen", and thus it is an aban number.