12033308081 has 2 divisors, whose sum is σ = 12033308082. Its totient is φ = 12033308080.

The previous prime is 12033308069. The next prime is 12033308117. The reversal of 12033308081 is 18080333021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11121811600 + 911496481 = 105460^2 + 30191^2 .

It is an emirp because it is prime and its reverse (18080333021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12033308081 - 2¹⁰ = 12033307057 is a prime.

It is a super-2 number, since 2×12033308081² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12033308041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6016654040 + 6016654041.

It is an arithmetic number, because the mean of its divisors is an integer number (6016654041).

Almost surely, 2^12033308081 is an apocalyptic number.

It is an amenable number.

12033308081 is a deficient number, since it is larger than the sum of its proper divisors (1).

12033308081 is an equidigital number, since it uses as much as digits as its factorization.

12033308081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 12033308081 in words is "twelve billion, thirty-three million, three hundred eight thousand, eighty-one".