320133211 has 4 divisors (see below), whose sum is σ = 320206392. Its totient is φ = 320060032.

The previous prime is 320133173. The next prime is 320133217. The reversal of 320133211 is 112331023.

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

It is a cyclic number.

It is not a de Polignac number, because 320133211 - 2⁷ = 320133083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320133217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29581 + ... + 38926.

It is an arithmetic number, because the mean of its divisors is an integer number (80051598).

Almost surely, 2^320133211 is an apocalyptic number.

320133211 is a deficient number, since it is larger than the sum of its proper divisors (73181).

320133211 is an equidigital number, since it uses as much as digits as its factorization.

320133211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73180.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 320133211 is about 17892.2667932266. The cubic root of 320133211 is about 684.0852770061.

Adding to 320133211 its reverse (112331023), we get a palindrome (432464234).

The spelling of 320133211 in words is "three hundred twenty million, one hundred thirty-three thousand, two hundred eleven".