12535023424 has 56 divisors (see below), whose sum is σ = 31011985728. Its totient is φ = 4883773440.

The previous prime is 12535023343. The next prime is 12535023451. The reversal of 12535023424 is 42432053521.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1266889 + ... + 1276744.

Almost surely, 2^12535023424 is an apocalyptic number.

12535023424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12535023424 is an abundant number, since it is smaller than the sum of its proper divisors (18476962304).

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

12535023424 is a wasteful number, since it uses less digits than its factorization.

12535023424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2543663 (or 2543653 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 12535023424 its reverse (42432053521), we get a palindrome (54967076945).

The spelling of 12535023424 in words is "twelve billion, five hundred thirty-five million, twenty-three thousand, four hundred twenty-four".