133323303 has 24 divisors (see below), whose sum is σ = 185120640. Its totient is φ = 85308720.

The previous prime is 133323293. The next prime is 133323329. The reversal of 133323303 is 303323331.

It is a de Polignac number, because none of the positive numbers 2^k-133323303 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133323303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133323373) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1294350 + ... + 1294452.

It is an arithmetic number, because the mean of its divisors is an integer number (7713360).

Almost surely, 2^133323303 is an apocalyptic number.

133323303 is a deficient number, since it is larger than the sum of its proper divisors (51797337).

133323303 is an equidigital number, since it uses as much as digits as its factorization.

133323303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339 (or 236 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 21.

The square root of 133323303 is about 11546.5710494501. The cubic root of 133323303 is about 510.8601440427.

Adding to 133323303 its reverse (303323331), we get a palindrome (436646634).

The spelling of 133323303 in words is "one hundred thirty-three million, three hundred twenty-three thousand, three hundred three".