113608236217 has 6 divisors (see below), whose sum is σ = 132156519738. Its totient is φ = 97378488144.

The previous prime is 113608236199. The next prime is 113608236221. The reversal of 113608236217 is 712632806311.

It can be written as a sum of positive squares in only one way, i.e., 78211952896 + 35396283321 = 279664^2 + 188139^2 .

It is a de Polignac number, because none of the positive numbers 2^k-113608236217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 113608236217.

It is not an unprimeable number, because it can be changed into a prime (113608236277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1159267668 + ... + 1159267765.

It is an arithmetic number, because the mean of its divisors is an integer number (22026086623).

Almost surely, 2^113608236217 is an apocalyptic number.

It is an amenable number.

113608236217 is a deficient number, since it is larger than the sum of its proper divisors (18548283521).

113608236217 is an equidigital number, since it uses as much as digits as its factorization.

113608236217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2318535447 (or 2318535440 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The spelling of 113608236217 in words is "one hundred thirteen billion, six hundred eight million, two hundred thirty-six thousand, two hundred seventeen".