133430203 has 8 divisors (see below), whose sum is σ = 137814048. Its totient is φ = 129115584.

The previous prime is 133430173. The next prime is 133430221. The reversal of 133430203 is 302034331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133430203 - 2⁹ = 133429691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133430243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13375 + ... + 21112.

It is an arithmetic number, because the mean of its divisors is an integer number (17226756).

Almost surely, 2^133430203 is an apocalyptic number.

133430203 is a deficient number, since it is larger than the sum of its proper divisors (4383845).

133430203 is an equidigital number, since it uses as much as digits as its factorization.

133430203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34613.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 133430203 is about 11551.1992018145. The cubic root of 133430203 is about 510.9966452114.

Adding to 133430203 its reverse (302034331), we get a palindrome (435464534).

It can be divided in two parts, 133 and 430203, that added together give a square (430336 = 656²).

The spelling of 133430203 in words is "one hundred thirty-three million, four hundred thirty thousand, two hundred three".