128231203 has 4 divisors (see below), whose sum is σ = 131213368. Its totient is φ = 125249040.

The previous prime is 128231177. The next prime is 128231227. The reversal of 128231203 is 302132821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 302132821 = 1993 ⋅151597.

It is a cyclic number.

It is not a de Polignac number, because 128231203 - 2¹⁷ = 128100131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128231263) 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, 1491018 + ... + 1491103.

It is an arithmetic number, because the mean of its divisors is an integer number (32803342).

Almost surely, 2^128231203 is an apocalyptic number.

128231203 is a deficient number, since it is larger than the sum of its proper divisors (2982165).

128231203 is an equidigital number, since it uses as much as digits as its factorization.

128231203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2982164.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 128231203 is about 11323.9217146711. The cubic root of 128231203 is about 504.2716723690.

The spelling of 128231203 in words is "one hundred twenty-eight million, two hundred thirty-one thousand, two hundred three".