321323220323 has 16 divisors (see below), whose sum is σ = 372032616384. Its totient is φ = 271832553600.

The previous prime is 321323220311. The next prime is 321323220329. The reversal of 321323220323 is 323022323123.

It is a cyclic number.

It is not a de Polignac number, because 321323220323 - 2⁶ = 321323220259 is a prime.

It is a super-2 number, since 2×321323220323² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321323220292 and 321323220301.

It is not an unprimeable number, because it can be changed into a prime (321323220329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 492740 + ... + 940977.

It is an arithmetic number, because the mean of its divisors is an integer number (23252038524).

Almost surely, 2^321323220323 is an apocalyptic number.

321323220323 is a deficient number, since it is larger than the sum of its proper divisors (50709396061).

321323220323 is a wasteful number, since it uses less digits than its factorization.

321323220323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1434142.

The product of its (nonzero) digits is 7776, while the sum is 26.

Adding to 321323220323 its reverse (323022323123), we get a palindrome (644345543446).

The spelling of 321323220323 in words is "three hundred twenty-one billion, three hundred twenty-three million, two hundred twenty thousand, three hundred twenty-three".