12320120320320 has 336 divisors, whose sum is σ = 42290457870528. Its totient is φ = 3036534497280.

The previous prime is 12320120320297. The next prime is 12320120320327. The reversal of 12320120320320 is 2302302102321.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12320120320327) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13775427 + ... + 14642493.

It is an arithmetic number, because the mean of its divisors is an integer number (125864457948).

Almost surely, 2^{12320120320320} is an apocalyptic number.

12320120320320 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 12320120320320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21145228935264).

12320120320320 is an abundant number, since it is smaller than the sum of its proper divisors (29970337550208).

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

12320120320320 is a wasteful number, since it uses less digits than its factorization.

12320120320320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867166 (or 867137 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 12320120320320 its reverse (2302302102321), we get a palindrome (14622422422641).

The spelling of 12320120320320 in words is "twelve trillion, three hundred twenty billion, one hundred twenty million, three hundred twenty thousand, three hundred twenty".