128012000251 has 2 divisors, whose sum is σ = 128012000252. Its totient is φ = 128012000250.

The previous prime is 128012000183. The next prime is 128012000257. The reversal of 128012000251 is 152000210821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128012000251 - 2¹¹ = 128011998203 is a prime.

It is not a weakly prime, because it can be changed into another prime (128012000257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64006000125 + 64006000126.

It is an arithmetic number, because the mean of its divisors is an integer number (64006000126).

Almost surely, 2^128012000251 is an apocalyptic number.

128012000251 is a deficient number, since it is larger than the sum of its proper divisors (1).

128012000251 is an equidigital number, since it uses as much as digits as its factorization.

128012000251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 22.

The spelling of 128012000251 in words is "one hundred twenty-eight billion, twelve million, two hundred fifty-one", and thus it is an aban number.