12103243042001 has 4 divisors (see below), whose sum is σ = 12103348071792. Its totient is φ = 12103138012212.

The previous prime is 12103243041991. The next prime is 12103243042013. The reversal of 12103243042001 is 10024034230121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12103243042001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12103243042201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52341851 + ... + 52572576.

It is an arithmetic number, because the mean of its divisors is an integer number (3025837017948).

Almost surely, 2^{12103243042001} is an apocalyptic number.

It is an amenable number.

12103243042001 is a deficient number, since it is larger than the sum of its proper divisors (105029791).

12103243042001 is a wasteful number, since it uses less digits than its factorization.

12103243042001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105029790.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 12103243042001 its reverse (10024034230121), we get a palindrome (22127277272122).

The spelling of 12103243042001 in words is "twelve trillion, one hundred three billion, two hundred forty-three million, forty-two thousand, one".