128310379 has 2 divisors, whose sum is σ = 128310380. Its totient is φ = 128310378.

The previous prime is 128310313. The next prime is 128310383. The reversal of 128310379 is 973013821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128310379 - 2¹¹ = 128308331 is a prime.

It is not a weakly prime, because it can be changed into another prime (128310979) 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, 64155189 + 64155190.

It is an arithmetic number, because the mean of its divisors is an integer number (64155190).

Almost surely, 2^128310379 is an apocalyptic number.

128310379 is a deficient number, since it is larger than the sum of its proper divisors (1).

128310379 is an equidigital number, since it uses as much as digits as its factorization.

128310379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 128310379 is about 11327.4171371942. The cubic root of 128310379 is about 504.3754380630.

The spelling of 128310379 in words is "one hundred twenty-eight million, three hundred ten thousand, three hundred seventy-nine".