321233021320 has 32 divisors (see below), whose sum is σ = 735024715200. Its totient is φ = 126315356608.

The previous prime is 321233021303. The next prime is 321233021357. The reversal of 321233021320 is 23120332123.

It is a junction number, because it is equal to n+sod(n) for n = 321233021291 and 321233021300.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68055484 + ... + 68060203.

It is an arithmetic number, because the mean of its divisors is an integer number (22969522350).

Almost surely, 2^321233021320 is an apocalyptic number.

It is an amenable number.

321233021320 is an abundant number, since it is smaller than the sum of its proper divisors (413791693880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321233021320 is a wasteful number, since it uses less digits than its factorization.

321233021320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136115757 (or 136115753 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 321233021320 its reverse (23120332123), we get a palindrome (344353353443).

The spelling of 321233021320 in words is "three hundred twenty-one billion, two hundred thirty-three million, twenty-one thousand, three hundred twenty".