111112808695877 has 2 divisors, whose sum is σ = 111112808695878. Its totient is φ = 111112808695876.

The previous prime is 111112808695843. The next prime is 111112808695937. The reversal of 111112808695877 is 778596808211111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105804388087876 + 5308420608001 = 10286126^2 + 2304001^2 .

It is a cyclic number.

It is not a de Polignac number, because 111112808695877 - 2⁸ = 111112808695621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111112808691877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55556404347938 + 55556404347939.

It is an arithmetic number, because the mean of its divisors is an integer number (55556404347939).

Almost surely, 2^{111112808695877} is an apocalyptic number.

It is an amenable number.

111112808695877 is a deficient number, since it is larger than the sum of its proper divisors (1).

111112808695877 is an equidigital number, since it uses as much as digits as its factorization.

111112808695877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13547520, while the sum is 65.

The spelling of 111112808695877 in words is "one hundred eleven trillion, one hundred twelve billion, eight hundred eight million, six hundred ninety-five thousand, eight hundred seventy-seven".