12005405255111 has 8 divisors (see below), whose sum is σ = 12058301779200. Its totient is φ = 11952512828640.

The previous prime is 12005405255099. The next prime is 12005405255113. The reversal of 12005405255111 is 11155250450021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12005405255111 - 2¹⁴ = 12005405238727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12005405255113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4924121 + ... + 6946781.

It is an arithmetic number, because the mean of its divisors is an integer number (1507287722400).

Almost surely, 2^{12005405255111} is an apocalyptic number.

12005405255111 is a deficient number, since it is larger than the sum of its proper divisors (52896524089).

12005405255111 is a wasteful number, since it uses less digits than its factorization.

12005405255111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2048809.

The product of its (nonzero) digits is 10000, while the sum is 32.

The spelling of 12005405255111 in words is "twelve trillion, five billion, four hundred five million, two hundred fifty-five thousand, one hundred eleven".