12001231111073 has 2 divisors, whose sum is σ = 12001231111074. Its totient is φ = 12001231111072.

The previous prime is 12001231111021. The next prime is 12001231111109. The reversal of 12001231111073 is 37011113210021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8799250120609 + 3201980990464 = 2966353^2 + 1789408^2 .

It is an emirp because it is prime and its reverse (37011113210021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12001231111073 - 2¹⁶ = 12001231045537 is a prime.

It is a super-2 number, since 2×12001231111073² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12001231111273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000615555536 + 6000615555537.

It is an arithmetic number, because the mean of its divisors is an integer number (6000615555537).

Almost surely, 2^{12001231111073} is an apocalyptic number.

It is an amenable number.

12001231111073 is a deficient number, since it is larger than the sum of its proper divisors (1).

12001231111073 is an equidigital number, since it uses as much as digits as its factorization.

12001231111073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 23.

Adding to 12001231111073 its reverse (37011113210021), we get a palindrome (49012344321094).

The spelling of 12001231111073 in words is "twelve trillion, one billion, two hundred thirty-one million, one hundred eleven thousand, seventy-three".