321113323220 has 48 divisors (see below), whose sum is σ = 678356078400. Its totient is φ = 127680510720.

The previous prime is 321113323217. The next prime is 321113323247. The reversal of 321113323220 is 22323311123.

It is a super-3 number, since 3×321113323220³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 10613915 + ... + 10644125.

It is an arithmetic number, because the mean of its divisors is an integer number (14132418300).

Almost surely, 2^321113323220 is an apocalyptic number.

It is an amenable number.

321113323220 is an abundant number, since it is smaller than the sum of its proper divisors (357242755180).

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

321113323220 is a wasteful number, since it uses less digits than its factorization.

321113323220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33368 (or 33366 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 321113323220 its reverse (22323311123), we get a palindrome (343436634343).

The spelling of 321113323220 in words is "three hundred twenty-one billion, one hundred thirteen million, three hundred twenty-three thousand, two hundred twenty".