104128811 has 2 divisors, whose sum is σ = 104128812. Its totient is φ = 104128810.

The previous prime is 104128793. The next prime is 104128831. The reversal of 104128811 is 118821401.

It is a weak prime.

It is an emirp because it is prime and its reverse (118821401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 104128811 - 2⁶ = 104128747 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (104128831) 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, 52064405 + 52064406.

It is an arithmetic number, because the mean of its divisors is an integer number (52064406).

Almost surely, 2^104128811 is an apocalyptic number.

104128811 is a deficient number, since it is larger than the sum of its proper divisors (1).

104128811 is an equidigital number, since it uses as much as digits as its factorization.

104128811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512, while the sum is 26.

The square root of 104128811 is about 10204.3525517301. The cubic root of 104128811 is about 470.4610098606.

The spelling of 104128811 in words is "one hundred four million, one hundred twenty-eight thousand, eight hundred eleven".