113211113 has 2 divisors, whose sum is σ = 113211114. Its totient is φ = 113211112.

The previous prime is 113211097. The next prime is 113211121. The reversal of 113211113 is 311112311.

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., 98565184 + 14645929 = 9928^2 + 3827^2 .

It is a cyclic number.

It is not a de Polignac number, because 113211113 - 2⁴ = 113211097 is a prime.

It is a super-2 number, since 2×113211113² = 25633512213397538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (113211613) 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 as a sum of consecutive naturals, namely, 56605556 + 56605557.

It is an arithmetic number, because the mean of its divisors is an integer number (56605557).

Almost surely, 2^113211113 is an apocalyptic number.

It is an amenable number.

113211113 is a deficient number, since it is larger than the sum of its proper divisors (1).

113211113 is an equidigital number, since it uses as much as digits as its factorization.

113211113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18, while the sum is 14.

The square root of 113211113 is about 10640.0710993865. The cubic root of 113211113 is about 483.7597004556.

Adding to 113211113 its reverse (311112311), we get a palindrome (424323424).

The spelling of 113211113 in words is "one hundred thirteen million, two hundred eleven thousand, one hundred thirteen".