128102803 has 4 divisors (see below), whose sum is σ = 135638280. Its totient is φ = 120567328.

The previous prime is 128102791. The next prime is 128102833. The reversal of 128102803 is 308201821.

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 128102803 - 2⁹ = 128102291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128102833) 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, 3767713 + ... + 3767746.

It is an arithmetic number, because the mean of its divisors is an integer number (33909570).

Almost surely, 2^128102803 is an apocalyptic number.

128102803 is a deficient number, since it is larger than the sum of its proper divisors (7535477).

128102803 is an equidigital number, since it uses as much as digits as its factorization.

128102803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7535476.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 128102803 is about 11318.2508807678. The cubic root of 128102803 is about 504.1033043367.

The spelling of 128102803 in words is "one hundred twenty-eight million, one hundred two thousand, eight hundred three".