12005321535311 has 32 divisors (see below), whose sum is σ = 13628087413248. Its totient is φ = 10499750997120.

The previous prime is 12005321535307. The next prime is 12005321535373. The reversal of 12005321535311 is 11353512350021.

It is a cyclic number.

It is not a de Polignac number, because 12005321535311 - 2² = 12005321535307 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 (12005321535391) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5969270 + ... + 7722876.

It is an arithmetic number, because the mean of its divisors is an integer number (425877731664).

Almost surely, 2^{12005321535311} is an apocalyptic number.

12005321535311 is a deficient number, since it is larger than the sum of its proper divisors (1622765877937).

12005321535311 is a wasteful number, since it uses less digits than its factorization.

12005321535311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1754031.

The product of its (nonzero) digits is 13500, while the sum is 32.

Adding to 12005321535311 its reverse (11353512350021), we get a palindrome (23358833885332).

The spelling of 12005321535311 in words is "twelve trillion, five billion, three hundred twenty-one million, five hundred thirty-five thousand, three hundred eleven".