12331401320 has 64 divisors (see below), whose sum is σ = 32229187200. Its totient is φ = 4158593280.

The previous prime is 12331401301. The next prime is 12331401361. The reversal of 12331401320 is 2310413321.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 12331401292 and 12331401301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 343910 + ... + 378069.

It is an arithmetic number, because the mean of its divisors is an integer number (503581050).

Almost surely, 2^12331401320 is an apocalyptic number.

12331401320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12331401320 is an abundant number, since it is smaller than the sum of its proper divisors (19897785880).

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

12331401320 is a wasteful number, since it uses less digits than its factorization.

12331401320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722058 (or 722054 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12331401320 its reverse (2310413321), we get a palindrome (14641814641).

The spelling of 12331401320 in words is "twelve billion, three hundred thirty-one million, four hundred one thousand, three hundred twenty".