12404320331320 has 64 divisors (see below), whose sum is σ = 28460106086400. Its totient is φ = 4864340158080.

The previous prime is 12404320331317. The next prime is 12404320331321. The reversal of 12404320331320 is 2313302340421.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12404320331321) 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, 6294736 + ... + 8026975.

It is an arithmetic number, because the mean of its divisors is an integer number (444689157600).

Almost surely, 2^{12404320331320} is an apocalyptic number.

12404320331320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12404320331320 is an abundant number, since it is smaller than the sum of its proper divisors (16055785755080).

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

12404320331320 is a wasteful number, since it uses less digits than its factorization.

12404320331320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14322148 (or 14322144 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 12404320331320 its reverse (2313302340421), we get a palindrome (14717622671741).

The spelling of 12404320331320 in words is "twelve trillion, four hundred four billion, three hundred twenty million, three hundred thirty-one thousand, three hundred twenty".