12005405255099 has 2 divisors, whose sum is σ = 12005405255100. Its totient is φ = 12005405255098.

The previous prime is 12005405255027. The next prime is 12005405255113. The reversal of 12005405255099 is 99055250450021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12005405255099 - 2¹⁶ = 12005405189563 is a prime.

It is not a weakly prime, because it can be changed into another prime (12005405155099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6002702627549 + 6002702627550.

It is an arithmetic number, because the mean of its divisors is an integer number (6002702627550).

Almost surely, 2^{12005405255099} is an apocalyptic number.

12005405255099 is a deficient number, since it is larger than the sum of its proper divisors (1).

12005405255099 is an equidigital number, since it uses as much as digits as its factorization.

12005405255099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810000, while the sum is 47.

The spelling of 12005405255099 in words is "twelve trillion, five billion, four hundred five million, two hundred fifty-five thousand, ninety-nine".