320134213 has 4 divisors (see below), whose sum is σ = 365867680. Its totient is φ = 274400748.

The previous prime is 320134207. The next prime is 320134223. The reversal of 320134213 is 312431023.

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: 312431023 = 2311 ⋅135193.

It is a cyclic number.

It is not a de Polignac number, because 320134213 - 2⁹ = 320133701 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 (320134223) 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, 22866723 + ... + 22866736.

It is an arithmetic number, because the mean of its divisors is an integer number (91466920).

Almost surely, 2^320134213 is an apocalyptic number.

It is an amenable number.

320134213 is a deficient number, since it is larger than the sum of its proper divisors (45733467).

320134213 is an equidigital number, since it uses as much as digits as its factorization.

320134213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45733466.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 320134213 is about 17892.2947941286. The cubic root of 320134213 is about 684.0859907222.

Adding to 320134213 its reverse (312431023), we get a palindrome (632565236).

The spelling of 320134213 in words is "three hundred twenty million, one hundred thirty-four thousand, two hundred thirteen".