112111101959917 has 2 divisors, whose sum is σ = 112111101959918. Its totient is φ = 112111101959916.

The previous prime is 112111101959903. The next prime is 112111101959921. The reversal of 112111101959917 is 719959101111211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61773013495561 + 50338088464356 = 7859581^2 + 7094934^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112111101959917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112111101939917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56055550979958 + 56055550979959.

It is an arithmetic number, because the mean of its divisors is an integer number (56055550979959).

Almost surely, 2^{112111101959917} is an apocalyptic number.

It is an amenable number.

112111101959917 is a deficient number, since it is larger than the sum of its proper divisors (1).

112111101959917 is an equidigital number, since it uses as much as digits as its factorization.

112111101959917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51030, while the sum is 49.

The spelling of 112111101959917 in words is "one hundred twelve trillion, one hundred eleven billion, one hundred one million, nine hundred fifty-nine thousand, nine hundred seventeen".