12021311310011 has 4 divisors (see below), whose sum is σ = 12021525997800. Its totient is φ = 12021096622224.

The previous prime is 12021311309999. The next prime is 12021311310097. The reversal of 12021311310011 is 11001311312021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12021311310011 - 2⁶ = 12021311309947 is a prime.

It is a super-2 number, since 2×12021311310011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12021311316011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107259881 + ... + 107371898.

It is an arithmetic number, because the mean of its divisors is an integer number (3005381499450).

Almost surely, 2^{12021311310011} is an apocalyptic number.

12021311310011 is a deficient number, since it is larger than the sum of its proper divisors (214687789).

12021311310011 is an equidigital number, since it uses as much as digits as its factorization.

12021311310011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214687788.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 12021311310011 its reverse (11001311312021), we get a palindrome (23022622622032).

The spelling of 12021311310011 in words is "twelve trillion, twenty-one billion, three hundred eleven million, three hundred ten thousand, eleven".