133311211 has 8 divisors (see below), whose sum is σ = 145519344. Its totient is φ = 121117920.

The previous prime is 133311203. The next prime is 133311287. The reversal of 133311211 is 112113331.

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

It is not a de Polignac number, because 133311211 - 2³ = 133311203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133315211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24321 + ... + 29293.

It is an arithmetic number, because the mean of its divisors is an integer number (18189918).

Almost surely, 2^133311211 is an apocalyptic number.

133311211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

133311211 is a deficient number, since it is larger than the sum of its proper divisors (12208133).

133311211 is a wasteful number, since it uses less digits than its factorization.

133311211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7421.

The product of its digits is 54, while the sum is 16.

The square root of 133311211 is about 11546.0474189222. The cubic root of 133311211 is about 510.8446991118.

Adding to 133311211 its reverse (112113331), we get a palindrome (245424542).

It can be divided in two parts, 1333 and 11211, that added together give a square (12544 = 112²).

The spelling of 133311211 in words is "one hundred thirty-three million, three hundred eleven thousand, two hundred eleven".