321321202123123 has 16 divisors (see below), whose sum is σ = 331728803390592. Its totient is φ = 311115584880000.

The previous prime is 321321202123093. The next prime is 321321202123139.

321321202123123 is nontrivially palindromic in base 10.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321321202123123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321321202123091 and 321321202123100.

It is not an unprimeable number, because it can be changed into a prime (321321202123183) 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, 149668443 + ... + 151800148.

It is an arithmetic number, because the mean of its divisors is an integer number (20733050211912).

Almost surely, 2^{321321202123123} is an apocalyptic number.

321321202123123 is a deficient number, since it is larger than the sum of its proper divisors (10407601267469).

321321202123123 is a wasteful number, since it uses less digits than its factorization.

321321202123123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301468926.

The product of its (nonzero) digits is 5184, while the sum is 28.

It can be divided in two parts, 32132120 and 2123123, that added together give a palindrome (34255243).

The spelling of 321321202123123 in words is "three hundred twenty-one trillion, three hundred twenty-one billion, two hundred two million, one hundred twenty-three thousand, one hundred twenty-three".