12000333181 has 2 divisors, whose sum is σ = 12000333182. Its totient is φ = 12000333180.

The previous prime is 12000333179. The next prime is 12000333221. The reversal of 12000333181 is 18133300021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11999230681 + 1102500 = 109541^2 + 1050^2 .

It is an emirp because it is prime and its reverse (18133300021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12000333181 - 2¹ = 12000333179 is a prime.

It is a super-2 number, since 2×12000333181² (a number of 21 digits) contains 22 as substring.

Together with 12000333179, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12000333581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000166590 + 6000166591.

It is an arithmetic number, because the mean of its divisors is an integer number (6000166591).

Almost surely, 2^12000333181 is an apocalyptic number.

It is an amenable number.

12000333181 is a deficient number, since it is larger than the sum of its proper divisors (1).

12000333181 is an equidigital number, since it uses as much as digits as its factorization.

12000333181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The spelling of 12000333181 in words is "twelve billion, three hundred thirty-three thousand, one hundred eighty-one".