128294011 has 2 divisors, whose sum is σ = 128294012. Its totient is φ = 128294010.

The previous prime is 128294009. The next prime is 128294039. The reversal of 128294011 is 110492821.

It is an a-pointer prime, because the next prime (128294039) can be obtained adding 128294011 to its sum of digits (28).

It is a weak prime.

It is an emirp because it is prime and its reverse (110492821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 128294011 - 2¹ = 128294009 is a prime.

Together with 128294009, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (128294071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64147005 + 64147006.

It is an arithmetic number, because the mean of its divisors is an integer number (64147006).

Almost surely, 2^128294011 is an apocalyptic number.

128294011 is a deficient number, since it is larger than the sum of its proper divisors (1).

128294011 is an equidigital number, since it uses as much as digits as its factorization.

128294011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 128294011 is about 11326.6946193495. The cubic root of 128294011 is about 504.3539901534.

The spelling of 128294011 in words is "one hundred twenty-eight million, two hundred ninety-four thousand, eleven".