113211617 has 2 divisors, whose sum is σ = 113211618. Its totient is φ = 113211616.

The previous prime is 113211613. The next prime is 113211643. The reversal of 113211617 is 716112311.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57395776 + 55815841 = 7576^2 + 7471^2 .

It is a cyclic number.

It is not a de Polignac number, because 113211617 - 2² = 113211613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 113211592 and 113211601.

It is not a weakly prime, because it can be changed into another prime (113211611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56605808 + 56605809.

It is an arithmetic number, because the mean of its divisors is an integer number (56605809).

Almost surely, 2^113211617 is an apocalyptic number.

It is an amenable number.

113211617 is a deficient number, since it is larger than the sum of its proper divisors (1).

113211617 is an equidigital number, since it uses as much as digits as its factorization.

113211617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 252, while the sum is 23.

The square root of 113211617 is about 10640.0947834124. The cubic root of 113211617 is about 483.7604183313.

Adding to 113211617 its reverse (716112311), we get a palindrome (829323928).

The spelling of 113211617 in words is "one hundred thirteen million, two hundred eleven thousand, six hundred seventeen".