321120313120 has 96 divisors (see below), whose sum is σ = 764507721600. Its totient is φ = 127456782336.

The previous prime is 321120313117. The next prime is 321120313123. The reversal of 321120313120 is 21313021123.

It is an interprime number because it is at equal distance from previous prime (321120313117) and next prime (321120313123).

It is not an unprimeable number, because it can be changed into a prime (321120313123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79150132 + ... + 79154188.

It is an arithmetic number, because the mean of its divisors is an integer number (7963622100).

Almost surely, 2^321120313120 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 321120313120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (382253860800).

321120313120 is an abundant number, since it is smaller than the sum of its proper divisors (443387408480).

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

321120313120 is a wasteful number, since it uses less digits than its factorization.

321120313120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7770 (or 7762 counting only the distinct ones).

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

Adding to 321120313120 its reverse (21313021123), we get a palindrome (342433334243).

The spelling of 321120313120 in words is "three hundred twenty-one billion, one hundred twenty million, three hundred thirteen thousand, one hundred twenty".