12431322505320 has 128 divisors (see below), whose sum is σ = 39132850636800. Its totient is φ = 3153173475584.

The previous prime is 12431322505279. The next prime is 12431322505333. The reversal of 12431322505320 is 2350522313421.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12087252 + ... + 13075331.

It is an arithmetic number, because the mean of its divisors is an integer number (305725395600).

Almost surely, 2^{12431322505320} is an apocalyptic number.

12431322505320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12431322505320 is an abundant number, since it is smaller than the sum of its proper divisors (26701528131480).

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

12431322505320 is a wasteful number, since it uses less digits than its factorization.

12431322505320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25162799 (or 25162795 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 12431322505320 its reverse (2350522313421), we get a palindrome (14781844818741).

The spelling of 12431322505320 in words is "twelve trillion, four hundred thirty-one billion, three hundred twenty-two million, five hundred five thousand, three hundred twenty".