320422133 has 4 divisors (see below), whose sum is σ = 320500320. Its totient is φ = 320343948.

The previous prime is 320422129. The next prime is 320422147. The reversal of 320422133 is 331224023.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 331224023 = 13 ⋅25478771.

It is a cyclic number.

It is not a de Polignac number, because 320422133 - 2² = 320422129 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320422933) 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 3 ways as a sum of consecutive naturals, for example, 32585 + ... + 41262.

It is an arithmetic number, because the mean of its divisors is an integer number (80125080).

Almost surely, 2^320422133 is an apocalyptic number.

It is an amenable number.

320422133 is a deficient number, since it is larger than the sum of its proper divisors (78187).

320422133 is an equidigital number, since it uses as much as digits as its factorization.

320422133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78186.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 320422133 is about 17900.3389074062. The cubic root of 320422133 is about 684.2910120461.

Adding to 320422133 its reverse (331224023), we get a palindrome (651646156).

It can be divided in two parts, 32042 and 2133, that multiplied together give a triangular number (68345586 = T₁₁₆₉₁).

The spelling of 320422133 in words is "three hundred twenty million, four hundred twenty-two thousand, one hundred thirty-three".