133020303 has 32 divisors (see below), whose sum is σ = 198744000. Its totient is φ = 78575616.

The previous prime is 133020299. The next prime is 133020313. The reversal of 133020303 is 303020331.

It is not a de Polignac number, because 133020303 - 2² = 133020299 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133020313) 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 31 ways as a sum of consecutive naturals, for example, 380973 + ... + 381321.

It is an arithmetic number, because the mean of its divisors is an integer number (6210750).

Almost surely, 2^133020303 is an apocalyptic number.

133020303 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

133020303 is a deficient number, since it is larger than the sum of its proper divisors (65723697).

133020303 is a wasteful number, since it uses less digits than its factorization.

133020303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731.

The product of its (nonzero) digits is 162, while the sum is 15.

The square root of 133020303 is about 11533.4428077656. The cubic root of 133020303 is about 510.4728448206.

Adding to 133020303 its reverse (303020331), we get a palindrome (436040634).

The spelling of 133020303 in words is "one hundred thirty-three million, twenty thousand, three hundred three".