128223603 has 12 divisors (see below), whose sum is σ = 186174040. Its totient is φ = 85038336.

The previous prime is 128223583. The next prime is 128223619. The reversal of 128223603 is 306322821.

It is not a de Polignac number, because 128223603 - 2¹⁰ = 128222579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128223653) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35173 + ... + 38646.

Almost surely, 2^128223603 is an apocalyptic number.

128223603 is a deficient number, since it is larger than the sum of its proper divisors (57950437).

128223603 is a wasteful number, since it uses less digits than its factorization.

128223603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74018 (or 74015 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 128223603 is about 11323.5861369091. The cubic root of 128223603 is about 504.2617097901.

The spelling of 128223603 in words is "one hundred twenty-eight million, two hundred twenty-three thousand, six hundred three".