12001103120005 has 4 divisors (see below), whose sum is σ = 14401323744012. Its totient is φ = 9600882496000.

The previous prime is 12001103119997. The next prime is 12001103120011. The reversal of 12001103120005 is 50002130110021.

12001103120005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1812130591716 + 10188972528289 = 1346154^2 + 3192017^2 .

It is not a de Polignac number, because 12001103120005 - 2³ = 12001103119997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1200110311996 + ... + 1200110312005.

It is an arithmetic number, because the mean of its divisors is an integer number (3600330936003).

Almost surely, 2^{12001103120005} is an apocalyptic number.

It is an amenable number.

12001103120005 is a deficient number, since it is larger than the sum of its proper divisors (2400220624007).

12001103120005 is an equidigital number, since it uses as much as digits as its factorization.

12001103120005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2400220624006.

The product of its (nonzero) digits is 60, while the sum is 16.

Adding to 12001103120005 its reverse (50002130110021), we get a palindrome (62003233230026).

The spelling of 12001103120005 in words is "twelve trillion, one billion, one hundred three million, one hundred twenty thousand, five".