128311303 has 2 divisors, whose sum is σ = 128311304. Its totient is φ = 128311302.

The previous prime is 128311259. The next prime is 128311327. The reversal of 128311303 is 303113821.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128311303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128311343) 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, 64155651 + 64155652.

It is an arithmetic number, because the mean of its divisors is an integer number (64155652).

Almost surely, 2^128311303 is an apocalyptic number.

128311303 is a deficient number, since it is larger than the sum of its proper divisors (1).

128311303 is an equidigital number, since it uses as much as digits as its factorization.

128311303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 128311303 is about 11327.4579231176. The cubic root of 128311303 is about 504.3766487777.

The spelling of 128311303 in words is "one hundred twenty-eight million, three hundred eleven thousand, three hundred three".