321223313123 has 4 divisors (see below), whose sum is σ = 321244415688. Its totient is φ = 321202210560.

The previous prime is 321223313113. The next prime is 321223313149. The reversal of 321223313123 is 321313322123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321313322123 = 167 ⋅1924031869.

It is a cyclic number.

It is not a de Polignac number, because 321223313123 - 2⁴ = 321223313107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321223313092 and 321223313101.

It is not an unprimeable number, because it can be changed into a prime (321223313113) 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, 10528433 + ... + 10558898.

It is an arithmetic number, because the mean of its divisors is an integer number (80311103922).

Almost surely, 2^321223313123 is an apocalyptic number.

321223313123 is a deficient number, since it is larger than the sum of its proper divisors (21102565).

321223313123 is a wasteful number, since it uses less digits than its factorization.

321223313123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21102564.

The product of its digits is 3888, while the sum is 26.

Adding to 321223313123 its reverse (321313322123), we get a palindrome (642536635246).

The spelling of 321223313123 in words is "three hundred twenty-one billion, two hundred twenty-three million, three hundred thirteen thousand, one hundred twenty-three".