12432140244 has 36 divisors (see below), whose sum is σ = 31894734144. Its totient is φ = 4082194512.

The previous prime is 12432140209. The next prime is 12432140261. The reversal of 12432140244 is 44204123421.

12432140244 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 (36).

It is a super-2 number, since 2×12432140244² (a number of 21 digits) contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 2574732 + ... + 2579555.

Almost surely, 2^12432140244 is an apocalyptic number.

It is an amenable number.

12432140244 is an abundant number, since it is smaller than the sum of its proper divisors (19462593900).

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

12432140244 is a wasteful number, since it uses less digits than its factorization.

12432140244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5154364 (or 5154359 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 12432140244 its reverse (44204123421), we get a palindrome (56636263665).

The spelling of 12432140244 in words is "twelve billion, four hundred thirty-two million, one hundred forty thousand, two hundred forty-four".