320213221323 has 16 divisors (see below), whose sum is σ = 428072105760. Its totient is φ = 212915602944.

The previous prime is 320213221277. The next prime is 320213221357. The reversal of 320213221323 is 323122312023.

It is not a de Polignac number, because 320213221323 - 2⁸ = 320213221067 is a prime.

It is a super-2 number, since 2×320213221323² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320213221293 and 320213221302.

It is not an unprimeable number, because it can be changed into a prime (320213221373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1776963 + ... + 1948851.

It is an arithmetic number, because the mean of its divisors is an integer number (26754506610).

Almost surely, 2^320213221323 is an apocalyptic number.

320213221323 is a deficient number, since it is larger than the sum of its proper divisors (107858884437).

320213221323 is a wasteful number, since it uses less digits than its factorization.

320213221323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173518.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 320213221323 its reverse (323122312023), we get a palindrome (643335533346).

The spelling of 320213221323 in words is "three hundred twenty billion, two hundred thirteen million, two hundred twenty-one thousand, three hundred twenty-three".