113123211 has 8 divisors (see below), whose sum is σ = 150880464. Its totient is φ = 75390720.

The previous prime is 113123201. The next prime is 113123221. The reversal of 113123211 is 112321311.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (113123201) and next prime (113123221).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 113123211 - 2⁹ = 113122699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113123201) 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 in 7 ways as a sum of consecutive naturals, for example, 12771 + ... + 19731.

It is an arithmetic number, because the mean of its divisors is an integer number (18860058).

Almost surely, 2^113123211 is an apocalyptic number.

113123211 is a deficient number, since it is larger than the sum of its proper divisors (37757253).

113123211 is an equidigital number, since it uses as much as digits as its factorization.

113123211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12381.

The product of its digits is 36, while the sum is 15.

The square root of 113123211 is about 10635.9395917803. The cubic root of 113123211 is about 483.6344640588.

Adding to 113123211 its reverse (112321311), we get a palindrome (225444522).

It can be divided in two parts, 1131 and 23211, that added together give a palindrome (24342).

The spelling of 113123211 in words is "one hundred thirteen million, one hundred twenty-three thousand, two hundred eleven".