12521030512344 has 32 divisors (see below), whose sum is σ = 31309559056320. Its totient is φ = 4172745800736.

The previous prime is 12521030512337. The next prime is 12521030512349. The reversal of 12521030512344 is 44321503012521.

It is a super-2 number, since 2×12521030512344² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12521030512349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58079962 + ... + 58295145.

It is an arithmetic number, because the mean of its divisors is an integer number (978423720510).

Almost surely, 2^{12521030512344} is an apocalyptic number.

It is an amenable number.

12521030512344 is an abundant number, since it is smaller than the sum of its proper divisors (18788528543976).

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

12521030512344 is a wasteful number, since it uses less digits than its factorization.

12521030512344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116379599 (or 116379595 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 12521030512344 its reverse (44321503012521), we get a palindrome (56842533524865).

The spelling of 12521030512344 in words is "twelve trillion, five hundred twenty-one billion, thirty million, five hundred twelve thousand, three hundred forty-four".