12400243412 has 24 divisors (see below), whose sum is σ = 22462917120. Its totient is φ = 5983382880.

The previous prime is 12400243397. The next prime is 12400243433. The reversal of 12400243412 is 21434200421.

12400243412 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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94763 + ... + 183794.

It is an arithmetic number, because the mean of its divisors is an integer number (935954880).

Almost surely, 2^12400243412 is an apocalyptic number.

It is an amenable number.

12400243412 is a deficient number, since it is larger than the sum of its proper divisors (10062673708).

12400243412 is a wasteful number, since it uses less digits than its factorization.

12400243412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278951 (or 278949 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 12400243412 its reverse (21434200421), we get a palindrome (33834443833).

The spelling of 12400243412 in words is "twelve billion, four hundred million, two hundred forty-three thousand, four hundred twelve".