128533898203 has 4 divisors (see below), whose sum is σ = 128543723800. Its totient is φ = 128524072608.

The previous prime is 128533898131. The next prime is 128533898239. The reversal of 128533898203 is 302898335821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 302898335821 = 47 ⋅6444645443.

It is a cyclic number.

It is not a de Polignac number, because 128533898203 - 2²¹ = 128531801051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128533898263) 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, 4893150 + ... + 4919347.

It is an arithmetic number, because the mean of its divisors is an integer number (32135930950).

Almost surely, 2^128533898203 is an apocalyptic number.

128533898203 is a deficient number, since it is larger than the sum of its proper divisors (9825597).

128533898203 is an equidigital number, since it uses as much as digits as its factorization.

128533898203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9825596.

The product of its (nonzero) digits is 2488320, while the sum is 52.

The spelling of 128533898203 in words is "one hundred twenty-eight billion, five hundred thirty-three million, eight hundred ninety-eight thousand, two hundred three".