133230203 has 4 divisors (see below), whose sum is σ = 133538328. Its totient is φ = 132922080.

The previous prime is 133230199. The next prime is 133230217. The reversal of 133230203 is 302032331.

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 133230203 - 2² = 133230199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133230233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153413 + ... + 154278.

It is an arithmetic number, because the mean of its divisors is an integer number (33384582).

Almost surely, 2^133230203 is an apocalyptic number.

133230203 is a deficient number, since it is larger than the sum of its proper divisors (308125).

133230203 is an equidigital number, since it uses as much as digits as its factorization.

133230203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308124.

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 133230203 is about 11542.5388455054. The cubic root of 133230203 is about 510.7412047093.

Adding to 133230203 its reverse (302032331), we get a palindrome (435262534).

The spelling of 133230203 in words is "one hundred thirty-three million, two hundred thirty thousand, two hundred three".