321123323211 has 4 divisors (see below), whose sum is σ = 428164430952. Its totient is φ = 214082215472.

The previous prime is 321123323167. The next prime is 321123323263. The reversal of 321123323211 is 112323321123.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 321123323211 - 2⁹ = 321123322699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (321123323111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53520553866 + ... + 53520553871.

It is an arithmetic number, because the mean of its divisors is an integer number (107041107738).

Almost surely, 2^321123323211 is an apocalyptic number.

321123323211 is a deficient number, since it is larger than the sum of its proper divisors (107041107741).

321123323211 is a wasteful number, since it uses less digits than its factorization.

321123323211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107041107740.

The product of its digits is 1296, while the sum is 24.

Adding to 321123323211 its reverse (112323321123), we get a palindrome (433446644334).

The spelling of 321123323211 in words is "three hundred twenty-one billion, one hundred twenty-three million, three hundred twenty-three thousand, two hundred eleven".