12001211103023 has 4 divisors (see below), whose sum is σ = 12388346945088. Its totient is φ = 11614075260960.

The previous prime is 12001211102999. The next prime is 12001211103029. The reversal of 12001211103023 is 32030111210021.

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

It is a cyclic number.

It is not a de Polignac number, because 12001211103023 - 2⁸ = 12001211102767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12001211102992 and 12001211103010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001211103029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193567920986 + ... + 193567921047.

It is an arithmetic number, because the mean of its divisors is an integer number (3097086736272).

Almost surely, 2^{12001211103023} is an apocalyptic number.

12001211103023 is a deficient number, since it is larger than the sum of its proper divisors (387135842065).

12001211103023 is an equidigital number, since it uses as much as digits as its factorization.

12001211103023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387135842064.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12001211103023 its reverse (32030111210021), we get a palindrome (44031322313044).

The spelling of 12001211103023 in words is "twelve trillion, one billion, two hundred eleven million, one hundred three thousand, twenty-three".