1108111111 has 2 divisors, whose sum is σ = 1108111112. Its totient is φ = 1108111110.

The previous prime is 1108111099. The next prime is 1108111127. The reversal of 1108111111 is 1111118011.

It is an a-pointer prime, because the next prime (1108111127) can be obtained adding 1108111111 to its sum of digits (16).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1108111111 - 2⁵ = 1108111079 is a prime.

1108111111 is a modest number, since divided by 11111 gives 11081 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1108111811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 554055555 + 554055556.

It is an arithmetic number, because the mean of its divisors is an integer number (554055556).

Almost surely, 2^1108111111 is an apocalyptic number.

1108111111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1108111111 is an equidigital number, since it uses as much as digits as its factorization.

1108111111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 16.

The square root of 1108111111 is about 33288.3029155888. The cubic root of 1108111111 is about 1034.8111586514.

Adding to 1108111111 its reverse (1111118011), we get a palindrome (2219229122).

It can be divided in two parts, 1108111 and 111, that multiplied together give a palindrome (123000321).

The spelling of 1108111111 in words is "one billion, one hundred eight million, one hundred eleven thousand, one hundred eleven".