321223300011100 has 72 divisors (see below), whose sum is σ = 701951560506000. Its totient is φ = 127587185011200.

The previous prime is 321223300011083. The next prime is 321223300011109. The reversal of 321223300011100 is 1110003322123.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321223300011109) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 44455015 + ... + 51173185.

It is an arithmetic number, because the mean of its divisors is an integer number (9749327229250).

Almost surely, 2^{321223300011100} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 321223300011100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (350975780253000).

321223300011100 is an abundant number, since it is smaller than the sum of its proper divisors (380728260494900).

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

321223300011100 is a wasteful number, since it uses less digits than its factorization.

321223300011100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6721543 (or 6721536 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 321223300011100 its reverse (1110003322123), we get a palindrome (322333303333223).

The spelling of 321223300011100 in words is "three hundred twenty-one trillion, two hundred twenty-three billion, three hundred million, eleven thousand, one hundred".