1111113111211 has 2 divisors, whose sum is σ = 1111113111212. Its totient is φ = 1111113111210.

The previous prime is 1111113111203. The next prime is 1111113111217. The reversal of 1111113111211 is 1121113111111.

It is a m-pointer prime, because the next prime (1111113111217) can be obtained adding 1111113111211 to its product of digits (6).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1111113111211 - 2³ = 1111113111203 is a prime.

It is not a weakly prime, because it can be changed into another prime (1111113111217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555556555605 + 555556555606.

It is an arithmetic number, because the mean of its divisors is an integer number (555556555606).

Almost surely, 2^{1111113111211} is an apocalyptic number.

1111113111211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111113111211 is an equidigital number, since it uses as much as digits as its factorization.

1111113111211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6, while the sum is 16.

Adding to 1111113111211 its reverse (1121113111111), we get a palindrome (2232226222322).

The spelling of 1111113111211 in words is "one trillion, one hundred eleven billion, one hundred thirteen million, one hundred eleven thousand, two hundred eleven".