128801003 has 4 divisors (see below), whose sum is σ = 129146688. Its totient is φ = 128455320.

The previous prime is 128800999. The next prime is 128801011. The reversal of 128801003 is 300108821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 128801003 - 2² = 128800999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 128801003.

It is not an unprimeable number, because it can be changed into a prime (128801303) 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 in 3 ways as a sum of consecutive naturals, for example, 172283 + ... + 173028.

It is an arithmetic number, because the mean of its divisors is an integer number (32286672).

Almost surely, 2^128801003 is an apocalyptic number.

128801003 is a deficient number, since it is larger than the sum of its proper divisors (345685).

128801003 is an equidigital number, since it uses as much as digits as its factorization.

128801003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345684.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 128801003 is about 11349.0529560840. The cubic root of 128801003 is about 505.0174852620.

Adding to 128801003 its reverse (300108821), we get a palindrome (428909824).

The spelling of 128801003 in words is "one hundred twenty-eight million, eight hundred one thousand, three".