320312222213 has 4 divisors (see below), whose sum is σ = 320385174048. Its totient is φ = 320239270380.

The previous prime is 320312222207. The next prime is 320312222227. The reversal of 320312222213 is 312222213023.

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 a de Polignac number, because none of the positive numbers 2^k-320312222213 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 (320312222273) 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, 36469331 + ... + 36478112.

It is an arithmetic number, because the mean of its divisors is an integer number (80096293512).

Almost surely, 2^320312222213 is an apocalyptic number.

It is an amenable number.

320312222213 is a deficient number, since it is larger than the sum of its proper divisors (72951835).

320312222213 is an equidigital number, since it uses as much as digits as its factorization.

320312222213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72951834.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 320312222213 its reverse (312222213023), we get a palindrome (632534435236).

The spelling of 320312222213 in words is "three hundred twenty billion, three hundred twelve million, two hundred twenty-two thousand, two hundred thirteen".