1320310120000 has 140 divisors (see below), whose sum is σ = 3318795829756. Its totient is φ = 520888320000.

The previous prime is 1320310119943. The next prime is 1320310120033. The reversal of 1320310120000 is 210130231.

It can be written as a sum of positive squares in 10 ways, for example, as 1264527238144 + 55782881856 = 1124512^2 + 236184^2 .

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 2693920 + ... + 3146080.

Almost surely, 2^{1320310120000} is an apocalyptic number.

1320310120000 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 1320310120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1659397914878).

1320310120000 is an abundant number, since it is smaller than the sum of its proper divisors (1998485709756).

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

1320310120000 is an frugal number, since it uses more digits than its factorization.

1320310120000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452266 (or 452241 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 1320310120000 its reverse (210130231), we get a palindrome (1320520250231).

The spelling of 1320310120000 in words is "one trillion, three hundred twenty billion, three hundred ten million, one hundred twenty thousand".