321356116211 has 16 divisors (see below), whose sum is σ = 346682871360. Its totient is φ = 296116490880.

The previous prime is 321356116189. The next prime is 321356116307. The reversal of 321356116211 is 112611653123.

It is a cyclic number.

It is not a de Polignac number, because 321356116211 - 2²² = 321351921907 is a prime.

It is a super-3 number, since 3×321356116211³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321356116811) 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, 22899545 + ... + 22913573.

It is an arithmetic number, because the mean of its divisors is an integer number (21667679460).

Almost surely, 2^321356116211 is an apocalyptic number.

321356116211 is a deficient number, since it is larger than the sum of its proper divisors (25326755149).

321356116211 is a wasteful number, since it uses less digits than its factorization.

321356116211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17006.

The product of its digits is 6480, while the sum is 32.

Adding to 321356116211 its reverse (112611653123), we get a palindrome (433967769334).

The spelling of 321356116211 in words is "three hundred twenty-one billion, three hundred fifty-six million, one hundred sixteen thousand, two hundred eleven".