128253566532203 has 12 divisors (see below), whose sum is σ = 149195017969200. Its totient is φ = 109930085777232.

The previous prime is 128253566532187. The next prime is 128253566532209. The reversal of 128253566532203 is 302235665352821.

It is not a de Polignac number, because 128253566532203 - 2⁴ = 128253566532187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128253566532209) 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, 14830976 + ... + 21828077.

It is an arithmetic number, because the mean of its divisors is an integer number (12432918164100).

Almost surely, 2^{128253566532203} is an apocalyptic number.

128253566532203 is a deficient number, since it is larger than the sum of its proper divisors (20941451436997).

128253566532203 is an equidigital number, since it uses as much as digits as its factorization.

128253566532203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36730466 (or 36730459 counting only the distinct ones).

The product of its (nonzero) digits is 15552000, while the sum is 53.

The spelling of 128253566532203 in words is "one hundred twenty-eight trillion, two hundred fifty-three billion, five hundred sixty-six million, five hundred thirty-two thousand, two hundred three".