128534323 has 2 divisors, whose sum is σ = 128534324. Its totient is φ = 128534322.

The previous prime is 128534321. The next prime is 128534363. The reversal of 128534323 is 323435821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 128534323 - 2¹ = 128534321 is a prime.

Together with 128534321, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (128534321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64267161 + 64267162.

It is an arithmetic number, because the mean of its divisors is an integer number (64267162).

Almost surely, 2^128534323 is an apocalyptic number.

128534323 is a deficient number, since it is larger than the sum of its proper divisors (1).

128534323 is an equidigital number, since it uses as much as digits as its factorization.

128534323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 31.

The square root of 128534323 is about 11337.2978703040. The cubic root of 128534323 is about 504.6687014370.

The spelling of 128534323 in words is "one hundred twenty-eight million, five hundred thirty-four thousand, three hundred twenty-three".