321330021330 has 16 divisors (see below), whose sum is σ = 771192051264. Its totient is φ = 85688005680.

The previous prime is 321330021317. The next prime is 321330021361. The reversal of 321330021330 is 33120033123.

It is a junction number, because it is equal to n+sod(n) for n = 321330021297 and 321330021306.

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, 5355500326 + ... + 5355500385.

It is an arithmetic number, because the mean of its divisors is an integer number (48199503204).

Almost surely, 2^321330021330 is an apocalyptic number.

321330021330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

321330021330 is an abundant number, since it is smaller than the sum of its proper divisors (449862029934).

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

321330021330 is a wasteful number, since it uses less digits than its factorization.

321330021330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10711000721.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 321330021330 its reverse (33120033123), we get a palindrome (354450054453).

The spelling of 321330021330 in words is "three hundred twenty-one billion, three hundred thirty million, twenty-one thousand, three hundred thirty".