1112111231111 has 2 divisors, whose sum is σ = 1112111231112. Its totient is φ = 1112111231110.

The previous prime is 1112111231081. The next prime is 1112111231123. The reversal of 1112111231111 is 1111321112111.

It is a m-pointer prime, because the next prime (1112111231123) can be obtained adding 1112111231111 to its product of digits (12).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1112111231111 - 2¹⁴ = 1112111214727 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1112111231111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1112111236111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556055615555 + 556055615556.

It is an arithmetic number, because the mean of its divisors is an integer number (556055615556).

Almost surely, 2^{1112111231111} is an apocalyptic number.

1112111231111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112111231111 is an equidigital number, since it uses as much as digits as its factorization.

1112111231111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12, while the sum is 17.

Adding to 1112111231111 its reverse (1111321112111), we get a palindrome (2223432343222).

The spelling of 1112111231111 in words is "one trillion, one hundred twelve billion, one hundred eleven million, two hundred thirty-one thousand, one hundred eleven".