12005103044321 has 16 divisors (see below), whose sum is σ = 12615494411520. Its totient is φ = 11402146852800.

The previous prime is 12005103044281. The next prime is 12005103044329. The reversal of 12005103044321 is 12344030150021.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12005103044321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12005103044329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7270631 + ... + 8767683.

It is an arithmetic number, because the mean of its divisors is an integer number (788468400720).

Almost surely, 2^{12005103044321} is an apocalyptic number.

It is an amenable number.

12005103044321 is a deficient number, since it is larger than the sum of its proper divisors (610391367199).

12005103044321 is a wasteful number, since it uses less digits than its factorization.

12005103044321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1499536.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 12005103044321 its reverse (12344030150021), we get a palindrome (24349133194342).

The spelling of 12005103044321 in words is "twelve trillion, five billion, one hundred three million, forty-four thousand, three hundred twenty-one".