12543265053 has 24 divisors (see below), whose sum is σ = 20015349120. Its totient is φ = 7505746560.

The previous prime is 12543265019. The next prime is 12543265069. The reversal of 12543265053 is 35056234521.

12543265053 is a `hidden beast` number, since 1 + 2 + 543 + 2 + 65 + 0 + 53 = 666.

12543265053 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12543265053 - 2¹² = 12543260957 is a prime.

It is a super-2 number, since 2×12543265053² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12543264999 and 12543265017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12543265753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 794076 + ... + 809717.

It is an arithmetic number, because the mean of its divisors is an integer number (833972880).

Almost surely, 2^12543265053 is an apocalyptic number.

It is an amenable number.

12543265053 is a deficient number, since it is larger than the sum of its proper divisors (7472084067).

12543265053 is a wasteful number, since it uses less digits than its factorization.

12543265053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603889 (or 1603886 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

Adding to 12543265053 its reverse (35056234521), we get a palindrome (47599499574).

The spelling of 12543265053 in words is "twelve billion, five hundred forty-three million, two hundred sixty-five thousand, fifty-three".