1111116811111 has 2 divisors, whose sum is σ = 1111116811112. Its totient is φ = 1111116811110.

The previous prime is 1111116811099. The next prime is 1111116811159. The reversal of 1111116811111 is 1111186111111.

It is a m-pointer prime, because the next prime (1111116811159) can be obtained adding 1111116811111 to its product of digits (48).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1111116811111 - 2²¹ = 1111114713959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111116812111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555558405555 + 555558405556.

It is an arithmetic number, because the mean of its divisors is an integer number (555558405556).

Almost surely, 2^{1111116811111} is an apocalyptic number.

1111116811111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111116811111 is an equidigital number, since it uses as much as digits as its factorization.

1111116811111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48, while the sum is 25.

The spelling of 1111116811111 in words is "one trillion, one hundred eleven billion, one hundred sixteen million, eight hundred eleven thousand, one hundred eleven".