133303023 has 16 divisors (see below), whose sum is σ = 225698560. Its totient is φ = 76173048.

The previous prime is 133303021. The next prime is 133303033. The reversal of 133303023 is 320303331.

It is not a de Polignac number, because 133303023 - 2¹ = 133303021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133302987 and 133303005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133303021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 352465 + ... + 352842.

It is an arithmetic number, because the mean of its divisors is an integer number (14106160).

Almost surely, 2^133303023 is an apocalyptic number.

133303023 is a deficient number, since it is larger than the sum of its proper divisors (92395537).

133303023 is an equidigital number, since it uses as much as digits as its factorization.

133303023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705323 (or 705317 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 18.

The square root of 133303023 is about 11545.6928332604. The cubic root of 133303023 is about 510.8342401714.

Adding to 133303023 its reverse (320303331), we get a palindrome (453606354).

The spelling of 133303023 in words is "one hundred thirty-three million, three hundred three thousand, twenty-three".