120312002320 has 80 divisors (see below), whose sum is σ = 284607498240. Its totient is φ = 47285683200.

The previous prime is 120312002303. The next prime is 120312002341. The reversal of 120312002320 is 23200213021.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 120312002294 and 120312002303.

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, 11894065 + ... + 11904175.

It is an arithmetic number, because the mean of its divisors is an integer number (3557593728).

Almost surely, 2^120312002320 is an apocalyptic number.

120312002320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120312002320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142303749120).

120312002320 is an abundant number, since it is smaller than the sum of its proper divisors (164295495920).

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

120312002320 is a wasteful number, since it uses less digits than its factorization.

120312002320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12704 (or 12698 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 120312002320 its reverse (23200213021), we get a palindrome (143512215341).

The spelling of 120312002320 in words is "one hundred twenty billion, three hundred twelve million, two thousand, three hundred twenty".