321201233320 has 32 divisors (see below), whose sum is σ = 788403028320. Its totient is φ = 116800448320.

The previous prime is 321201233303. The next prime is 321201233333. The reversal of 321201233320 is 23332102123.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 321201233291 and 321201233300.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365000962 + ... + 365001841.

It is an arithmetic number, because the mean of its divisors is an integer number (24637594635).

Almost surely, 2^321201233320 is an apocalyptic number.

It is an amenable number.

321201233320 is an abundant number, since it is smaller than the sum of its proper divisors (467201795000).

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

321201233320 is a wasteful number, since it uses less digits than its factorization.

321201233320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730002825 (or 730002821 counting only the distinct ones).

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

Adding to 321201233320 its reverse (23332102123), we get a palindrome (344533335443).

The spelling of 321201233320 in words is "three hundred twenty-one billion, two hundred one million, two hundred thirty-three thousand, three hundred twenty".