12405234252 has 12 divisors (see below), whose sum is σ = 28945546616. Its totient is φ = 4135078080.

The previous prime is 12405234211. The next prime is 12405234263. The reversal of 12405234252 is 25243250421.

12405234252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 516884749 + ... + 516884772.

Almost surely, 2^12405234252 is an apocalyptic number.

12405234252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12405234252 is an abundant number, since it is smaller than the sum of its proper divisors (16540312364).

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

12405234252 is a wasteful number, since it uses less digits than its factorization.

12405234252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033769528 (or 1033769526 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 12405234252 its reverse (25243250421), we get a palindrome (37648484673).

The spelling of 12405234252 in words is "twelve billion, four hundred five million, two hundred thirty-four thousand, two hundred fifty-two".