11111111111411 has 2 divisors, whose sum is σ = 11111111111412. Its totient is φ = 11111111111410.

The previous prime is 11111111111257. The next prime is 11111111111417. The reversal of 11111111111411 is 11411111111111.

It is a strong prime.

It is an emirp because it is prime and its reverse (11411111111111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11111111111411 - 2¹⁰ = 11111111110387 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11111111111411.

It is not a weakly prime, because it can be changed into another prime (11111111111417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555555555705 + 5555555555706.

It is an arithmetic number, because the mean of its divisors is an integer number (5555555555706).

Almost surely, 2^{11111111111411} is an apocalyptic number.

11111111111411 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111111111411 is an equidigital number, since it uses as much as digits as its factorization.

11111111111411 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4, while the sum is 17.

Adding to 11111111111411 its reverse (11411111111111), we get a palindrome (22522222222522).

It can be divided in two parts, 111111111 and 11411, that multiplied together give a palindrome (1267888887621).

The spelling of 11111111111411 in words is "eleven trillion, one hundred eleven billion, one hundred eleven million, one hundred eleven thousand, four hundred eleven".