128310683 has 4 divisors (see below), whose sum is σ = 128344128. Its totient is φ = 128277240.

The previous prime is 128310671. The next prime is 128310691. The reversal of 128310683 is 386013821.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 386013821 = 103 ⋅3747707.

It is a cyclic number.

It is not a de Polignac number, because 128310683 - 2⁶ = 128310619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128310283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10091 + ... + 18932.

It is an arithmetic number, because the mean of its divisors is an integer number (32086032).

Almost surely, 2^128310683 is an apocalyptic number.

128310683 is a deficient number, since it is larger than the sum of its proper divisors (33445).

128310683 is an equidigital number, since it uses as much as digits as its factorization.

128310683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33444.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 128310683 is about 11327.4305559558. The cubic root of 128310683 is about 504.3758363940.

The spelling of 128310683 in words is "one hundred twenty-eight million, three hundred ten thousand, six hundred eighty-three".