321011023320220 has 48 divisors (see below), whose sum is σ = 677933915904000. Its totient is φ = 127678643599680.

The previous prime is 321011023320067. The next prime is 321011023320269. The reversal of 321011023320220 is 22023320110123.

It is a junction number, because it is equal to n+sod(n) for n = 321011023320191 and 321011023320200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51462625 + ... + 57362215.

It is an arithmetic number, because the mean of its divisors is an integer number (14123623248000).

Almost surely, 2^{321011023320220} is an apocalyptic number.

It is an amenable number.

321011023320220 is an abundant number, since it is smaller than the sum of its proper divisors (356922892583780).

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

321011023320220 is a wasteful number, since it uses less digits than its factorization.

321011023320220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5914978 (or 5914976 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 321011023320220 its reverse (22023320110123), we get a palindrome (343034343430343).

The spelling of 321011023320220 in words is "three hundred twenty-one trillion, eleven billion, twenty-three million, three hundred twenty thousand, two hundred twenty".