12311520125244 has 24 divisors (see below), whose sum is σ = 28726941810000. Its totient is φ = 4103831253504.

The previous prime is 12311520125243. The next prime is 12311520125273. The reversal of 12311520125244 is 44252102511321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311520125243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7317882 + ... + 8841630.

It is an arithmetic number, because the mean of its divisors is an integer number (1196955908750).

Almost surely, 2^{12311520125244} is an apocalyptic number.

It is an amenable number.

12311520125244 is an abundant number, since it is smaller than the sum of its proper divisors (16415421684756).

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

12311520125244 is a wasteful number, since it uses less digits than its factorization.

12311520125244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2197069 (or 2197067 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

Adding to 12311520125244 its reverse (44252102511321), we get a palindrome (56563622636565).

The spelling of 12311520125244 in words is "twelve trillion, three hundred eleven billion, five hundred twenty million, one hundred twenty-five thousand, two hundred forty-four".