321120310104 has 96 divisors (see below), whose sum is σ = 949432760640. Its totient is φ = 97240651200.

The previous prime is 321120310033. The next prime is 321120310109. The reversal of 321120310104 is 401013021123.

321120310104 is a `hidden beast` number, since 321 + 1 + 20 + 310 + 10 + 4 = 666.

It is a super-2 number, since 2×321120310104² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321120310109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 988119 + ... + 1272249.

It is an arithmetic number, because the mean of its divisors is an integer number (9889924590).

Almost surely, 2^321120310104 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 321120310104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (474716380320).

321120310104 is an abundant number, since it is smaller than the sum of its proper divisors (628312450536).

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

321120310104 is a wasteful number, since it uses less digits than its factorization.

321120310104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285581 (or 285574 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 321120310104 its reverse (401013021123), we get a palindrome (722133331227).

The spelling of 321120310104 in words is "three hundred twenty-one billion, one hundred twenty million, three hundred ten thousand, one hundred four".