133213323 has 8 divisors (see below), whose sum is σ = 178381008. Its totient is φ = 88427264.

The previous prime is 133213277. The next prime is 133213337. The reversal of 133213323 is 323312331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133213323 - 2⁶ = 133213259 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133213323.

It is not an unprimeable number, because it can be changed into a prime (133213363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94590 + ... + 95987.

It is an arithmetic number, because the mean of its divisors is an integer number (22297626).

Almost surely, 2^133213323 is an apocalyptic number.

133213323 is a deficient number, since it is larger than the sum of its proper divisors (45167685).

133213323 is a wasteful number, since it uses less digits than its factorization.

133213323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190813.

The product of its digits is 972, while the sum is 21.

The square root of 133213323 is about 11541.8076140612. The cubic root of 133213323 is about 510.7196338355.

Adding to 133213323 its reverse (323312331), we get a palindrome (456525654).

The spelling of 133213323 in words is "one hundred thirty-three million, two hundred thirteen thousand, three hundred twenty-three".