13424513231205 has 24 divisors (see below), whose sum is σ = 23336214381792. Its totient is φ = 7139107124064.

The previous prime is 13424513231149. The next prime is 13424513231257. The reversal of 13424513231205 is 50213231542431.

13424513231205 is a `hidden beast` number, since 1 + 3 + 424 + 5 + 1 + 3 + 23 + 1 + 205 = 666.

It is not a de Polignac number, because 13424513231205 - 2¹² = 13424513227109 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13424513231205.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 429843919 + ... + 429875148.

It is an arithmetic number, because the mean of its divisors is an integer number (972342265908).

Almost surely, 2^{13424513231205} is an apocalyptic number.

13424513231205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13424513231205 is a deficient number, since it is larger than the sum of its proper divisors (9911701150587).

13424513231205 is a wasteful number, since it uses less digits than its factorization.

13424513231205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859719425 (or 859719422 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 13424513231205 its reverse (50213231542431), we get a palindrome (63637744773636).

The spelling of 13424513231205 in words is "thirteen trillion, four hundred twenty-four billion, five hundred thirteen million, two hundred thirty-one thousand, two hundred five".