113110121 has 4 divisors (see below), whose sum is σ = 117010500. Its totient is φ = 109209744.

The previous prime is 113110093. The next prime is 113110157. The reversal of 113110121 is 121011311.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40195600 + 72914521 = 6340^2 + 8539^2 .

It is a cyclic number.

It is not a de Polignac number, because 113110121 - 2⁶ = 113110057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (113110421) 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 3 ways as a sum of consecutive naturals, for example, 1950146 + ... + 1950203.

It is an arithmetic number, because the mean of its divisors is an integer number (29252625).

Almost surely, 2^113110121 is an apocalyptic number.

It is an amenable number.

113110121 is a deficient number, since it is larger than the sum of its proper divisors (3900379).

113110121 is an equidigital number, since it uses as much as digits as its factorization.

113110121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3900378.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 113110121 is about 10635.3242075641. The cubic root of 113110121 is about 483.6158088265.

Adding to 113110121 its reverse (121011311), we get a palindrome (234121432).

The spelling of 113110121 in words is "one hundred thirteen million, one hundred ten thousand, one hundred twenty-one".