133420203 has 20 divisors (see below), whose sum is σ = 227780080. Its totient is φ = 76239792.

The previous prime is 133420159. The next prime is 133420207. The reversal of 133420203 is 302024331.

It is not a de Polignac number, because 133420203 - 2⁶ = 133420139 is a prime.

It is a super-2 number, since 2×133420203² = 35601901137122418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133420207) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 117088 + ... + 118221.

It is an arithmetic number, because the mean of its divisors is an integer number (11389004).

Almost surely, 2^133420203 is an apocalyptic number.

133420203 is a deficient number, since it is larger than the sum of its proper divisors (94359877).

133420203 is an equidigital number, since it uses as much as digits as its factorization.

133420203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235328 (or 235319 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 133420203 is about 11550.7663382132. The cubic root of 133420203 is about 510.9838792509.

Adding to 133420203 its reverse (302024331), we get a palindrome (435444534).

The spelling of 133420203 in words is "one hundred thirty-three million, four hundred twenty thousand, two hundred three".