12321210563512 has 16 divisors (see below), whose sum is σ = 23306714673840. Its totient is φ = 6106086650496.

The previous prime is 12321210563479. The next prime is 12321210563537. The reversal of 12321210563512 is 21536501212321.

12321210563512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6814827948 + ... + 6814829755.

It is an arithmetic number, because the mean of its divisors is an integer number (1456669667115).

Almost surely, 2^{12321210563512} is an apocalyptic number.

It is an amenable number.

12321210563512 is a deficient number, since it is larger than the sum of its proper divisors (10985504110328).

12321210563512 is a wasteful number, since it uses less digits than its factorization.

12321210563512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13629657822 (or 13629657818 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

Adding to 12321210563512 its reverse (21536501212321), we get a palindrome (33857711775833).

The spelling of 12321210563512 in words is "twelve trillion, three hundred twenty-one billion, two hundred ten million, five hundred sixty-three thousand, five hundred twelve".