128303313 has 16 divisors (see below), whose sum is σ = 174292416. Its totient is φ = 83931840.

The previous prime is 128303311. The next prime is 128303321. The reversal of 128303313 is 313303821.

It is not a de Polignac number, because 128303313 - 2¹ = 128303311 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (128303311) 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 in 15 ways as a sum of consecutive naturals, for example, 141006 + ... + 141912.

It is an arithmetic number, because the mean of its divisors is an integer number (10893276).

Almost surely, 2^128303313 is an apocalyptic number.

It is an amenable number.

128303313 is a deficient number, since it is larger than the sum of its proper divisors (45989103).

128303313 is an equidigital number, since it uses as much as digits as its factorization.

128303313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1744.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 128303313 is about 11327.1052347897. The cubic root of 128303313 is about 504.3661793101.

The spelling of 128303313 in words is "one hundred twenty-eight million, three hundred three thousand, three hundred thirteen".