113211111 has 16 divisors (see below), whose sum is σ = 164143616. Its totient is φ = 68989536.

The previous prime is 113211097. The next prime is 113211113. The reversal of 113211111 is 111112311.

It is not a de Polignac number, because 113211111 - 2⁶ = 113211047 is a prime.

113211111 is a modest number, since divided by 11111 gives 1132 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113211113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10075 + ... + 18108.

It is an arithmetic number, because the mean of its divisors is an integer number (10258976).

Almost surely, 2^113211111 is an apocalyptic number.

113211111 is a deficient number, since it is larger than the sum of its proper divisors (50932505).

113211111 is a wasteful number, since it uses less digits than its factorization.

113211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28302.

The product of its digits is 6, while the sum is 12.

The square root of 113211111 is about 10640.0710054022. The cubic root of 113211111 is about 483.7596976069.

Adding to 113211111 its reverse (111112311), we get a palindrome (224323422).

The spelling of 113211111 in words is "one hundred thirteen million, two hundred eleven thousand, one hundred eleven".