12011212311313 has 16 divisors (see below), whose sum is σ = 12539712347136. Its totient is φ = 11483236638720.

The previous prime is 12011212311311. The next prime is 12011212311377. The reversal of 12011212311313 is 31311321211021.

It is a cyclic number.

It is not a de Polignac number, because 12011212311313 - 2¹ = 12011212311311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12011212311311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 446815633 + ... + 446842513.

It is an arithmetic number, because the mean of its divisors is an integer number (783732021696).

Almost surely, 2^{12011212311313} is an apocalyptic number.

It is an amenable number.

12011212311313 is a deficient number, since it is larger than the sum of its proper divisors (528500035823).

12011212311313 is a wasteful number, since it uses less digits than its factorization.

12011212311313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35904.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 12011212311313 its reverse (31311321211021), we get a palindrome (43322533522334).

The spelling of 12011212311313 in words is "twelve trillion, eleven billion, two hundred twelve million, three hundred eleven thousand, three hundred thirteen".