320012220223 has 4 divisors (see below), whose sum is σ = 327817396368. Its totient is φ = 312207044080.

The previous prime is 320012220179. The next prime is 320012220287. The reversal of 320012220223 is 322022210023.

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 320012220223 - 2⁹ = 320012219711 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 320012220223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320012220623) 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, 3902588011 + ... + 3902588092.

It is an arithmetic number, because the mean of its divisors is an integer number (81954349092).

Almost surely, 2^320012220223 is an apocalyptic number.

320012220223 is a deficient number, since it is larger than the sum of its proper divisors (7805176145).

320012220223 is an equidigital number, since it uses as much as digits as its factorization.

320012220223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7805176144.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 320012220223 its reverse (322022210023), we get a palindrome (642034430246).

The spelling of 320012220223 in words is "three hundred twenty billion, twelve million, two hundred twenty thousand, two hundred twenty-three".