321233521696 has 24 divisors (see below), whose sum is σ = 633685840704. Its totient is φ = 160297435200.

The previous prime is 321233521691. The next prime is 321233521747. The reversal of 321233521696 is 696125332123.

It is a happy number.

It is a super-2 number, since 2×321233521696² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (321233521691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9962580 + ... + 9994771.

It is an arithmetic number, because the mean of its divisors is an integer number (26403576696).

Almost surely, 2^321233521696 is an apocalyptic number.

It is an amenable number.

321233521696 is a deficient number, since it is larger than the sum of its proper divisors (312452319008).

321233521696 is a wasteful number, since it uses less digits than its factorization.

321233521696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19957864 (or 19957856 counting only the distinct ones).

The product of its digits is 349920, while the sum is 43.

The spelling of 321233521696 in words is "three hundred twenty-one billion, two hundred thirty-three million, five hundred twenty-one thousand, six hundred ninety-six".