133331323 has 4 divisors (see below), whose sum is σ = 141174360. Its totient is φ = 125488288.

The previous prime is 133331321. The next prime is 133331333. The reversal of 133331323 is 323133331.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 133331323 - 2¹ = 133331321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133331294 and 133331303.

It is not an unprimeable number, because it can be changed into a prime (133331321) 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 3 ways as a sum of consecutive naturals, for example, 3921493 + ... + 3921526.

It is an arithmetic number, because the mean of its divisors is an integer number (35293590).

Almost surely, 2^133331323 is an apocalyptic number.

133331323 is a deficient number, since it is larger than the sum of its proper divisors (7843037).

133331323 is an equidigital number, since it uses as much as digits as its factorization.

133331323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7843036.

The product of its digits is 1458, while the sum is 22.

The square root of 133331323 is about 11546.9183334776. The cubic root of 133331323 is about 510.8703873538.

Adding to 133331323 its reverse (323133331), we get a palindrome (456464654).

The spelling of 133331323 in words is "one hundred thirty-three million, three hundred thirty-one thousand, three hundred twenty-three".