133211330 has 32 divisors (see below), whose sum is σ = 274544640. Its totient is φ = 45587520.

The previous prime is 133211329. The next prime is 133211339. The reversal of 133211330 is 33112331.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 133211299 and 133211308.

It is not an unprimeable number, because it can be changed into a prime (133211339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44831 + ... + 47709.

It is an arithmetic number, because the mean of its divisors is an integer number (8579520).

Almost surely, 2^133211330 is an apocalyptic number.

133211330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133211330 is an abundant number, since it is smaller than the sum of its proper divisors (141333310).

133211330 is a wasteful number, since it uses less digits than its factorization.

133211330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3554.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 133211330 is about 11541.7212754424. The cubic root of 133211330 is about 510.7170868698.

Adding to 133211330 its reverse (33112331), we get a palindrome (166323661).

The spelling of 133211330 in words is "one hundred thirty-three million, two hundred eleven thousand, three hundred thirty".