12103043040243 has 24 divisors (see below), whose sum is σ = 17734544545536. Its totient is φ = 7952295078000.

The previous prime is 12103043040241. The next prime is 12103043040269. The reversal of 12103043040243 is 34204034030121.

12103043040243 is a `hidden beast` number, since 1 + 2 + 10 + 304 + 304 + 0 + 2 + 43 = 666.

It is not a de Polignac number, because 12103043040243 - 2¹ = 12103043040241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12103043040241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1435533 + ... + 5125118.

It is an arithmetic number, because the mean of its divisors is an integer number (738939356064).

Almost surely, 2^{12103043040243} is an apocalyptic number.

12103043040243 is a deficient number, since it is larger than the sum of its proper divisors (5631501505293).

12103043040243 is a wasteful number, since it uses less digits than its factorization.

12103043040243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6563615 (or 6563612 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 12103043040243 its reverse (34204034030121), we get a palindrome (46307077070364).

The spelling of 12103043040243 in words is "twelve trillion, one hundred three billion, forty-three million, forty thousand, two hundred forty-three".