133211323 has 8 divisors (see below), whose sum is σ = 152315360. Its totient is φ = 114125760.

The previous prime is 133211279. The next prime is 133211327. The reversal of 133211323 is 323112331.

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

It is not a de Polignac number, because 133211323 - 2²¹ = 131114171 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133211323.

It is not an unprimeable number, because it can be changed into a prime (133211327) 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, 18703 + ... + 24823.

It is an arithmetic number, because the mean of its divisors is an integer number (19039420).

Almost surely, 2^133211323 is an apocalyptic number.

133211323 is a deficient number, since it is larger than the sum of its proper divisors (19104037).

133211323 is an equidigital number, since it uses as much as digits as its factorization.

133211323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9237.

The product of its digits is 324, while the sum is 19.

The square root of 133211323 is about 11541.7209721947. The cubic root of 133211323 is about 510.7170779240.

Adding to 133211323 its reverse (323112331), we get a palindrome (456323654).

The spelling of 133211323 in words is "one hundred thirty-three million, two hundred eleven thousand, three hundred twenty-three".