12002003011181 has 2 divisors, whose sum is σ = 12002003011182. Its totient is φ = 12002003011180.

The previous prime is 12002003011123. The next prime is 12002003011183. The reversal of 12002003011181 is 18111030020021.

It is a happy number.

12002003011181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11996282509225 + 5720501956 = 3463565^2 + 75634^2 .

It is a cyclic number.

It is not a de Polignac number, because 12002003011181 - 2¹⁴ = 12002002994797 is a prime.

It is a super-2 number, since 2×12002003011181² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 12002003011183, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12002003011183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6001001505590 + 6001001505591.

It is an arithmetic number, because the mean of its divisors is an integer number (6001001505591).

Almost surely, 2^{12002003011181} is an apocalyptic number.

It is an amenable number.

12002003011181 is a deficient number, since it is larger than the sum of its proper divisors (1).

12002003011181 is an equidigital number, since it uses as much as digits as its factorization.

12002003011181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 20.

The spelling of 12002003011181 in words is "twelve trillion, two billion, three million, eleven thousand, one hundred eighty-one".