320021213333213 has 4 divisors (see below), whose sum is σ = 365738529523680. Its totient is φ = 274303897142748.

The previous prime is 320021213333089. The next prime is 320021213333287. The reversal of 320021213333213 is 312333312120023.

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.

It is a cyclic number.

It is not a de Polignac number, because 320021213333213 - 2⁸ = 320021213332957 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 (320021213330213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22858658095223 + ... + 22858658095236.

It is an arithmetic number, because the mean of its divisors is an integer number (91434632380920).

Almost surely, 2^{320021213333213} is an apocalyptic number.

It is an amenable number.

320021213333213 is a deficient number, since it is larger than the sum of its proper divisors (45717316190467).

320021213333213 is an equidigital number, since it uses as much as digits as its factorization.

320021213333213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45717316190466.

The product of its (nonzero) digits is 11664, while the sum is 29.

Adding to 320021213333213 its reverse (312333312120023), we get a palindrome (632354525453236).

The spelling of 320021213333213 in words is "three hundred twenty trillion, twenty-one billion, two hundred thirteen million, three hundred thirty-three thousand, two hundred thirteen".