321110200312 has 64 divisors (see below), whose sum is σ = 690981840000. Its totient is φ = 138537463680.

The previous prime is 321110200309. The next prime is 321110200393. The reversal of 321110200312 is 213002011123.

It is a super-2 number, since 2×321110200312² (a number of 24 digits) contains 22 as substring.

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, 915762 + ... + 1216897.

It is an arithmetic number, because the mean of its divisors is an integer number (10796591250).

Almost surely, 2^321110200312 is an apocalyptic number.

It is an amenable number.

321110200312 is an abundant number, since it is smaller than the sum of its proper divisors (369871639688).

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

321110200312 is a wasteful number, since it uses less digits than its factorization.

321110200312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132764 (or 2132760 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 321110200312 its reverse (213002011123), we get a palindrome (534112211435).

The spelling of 321110200312 in words is "three hundred twenty-one billion, one hundred ten million, two hundred thousand, three hundred twelve".