12013311011111 has 2 divisors, whose sum is σ = 12013311011112. Its totient is φ = 12013311011110.

The previous prime is 12013311011089. The next prime is 12013311011167. The reversal of 12013311011111 is 11111011331021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12013311011111 - 2¹⁰ = 12013311010087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12013311011111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12013311011711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6006655505555 + 6006655505556.

It is an arithmetic number, because the mean of its divisors is an integer number (6006655505556).

Almost surely, 2^{12013311011111} is an apocalyptic number.

12013311011111 is a deficient number, since it is larger than the sum of its proper divisors (1).

12013311011111 is an equidigital number, since it uses as much as digits as its factorization.

12013311011111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 17.

Adding to 12013311011111 its reverse (11111011331021), we get a palindrome (23124322342132).

The spelling of 12013311011111 in words is "twelve trillion, thirteen billion, three hundred eleven million, eleven thousand, one hundred eleven".