113023121 has 8 divisors (see below), whose sum is σ = 117226920. Its totient is φ = 108839808.

The previous prime is 113023093. The next prime is 113023133. The reversal of 113023121 is 121320311.

It can be written as a sum of positive squares in 4 ways, for example, as 63123025 + 49900096 = 7945^2 + 7064^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 113023121 - 2¹⁰ = 113022097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113023096 and 113023105.

It is not an unprimeable number, because it can be changed into a prime (113023321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6605 + ... + 16421.

It is an arithmetic number, because the mean of its divisors is an integer number (14653365).

Almost surely, 2^113023121 is an apocalyptic number.

It is an amenable number.

113023121 is a deficient number, since it is larger than the sum of its proper divisors (4203799).

113023121 is an equidigital number, since it uses as much as digits as its factorization.

113023121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10243.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 113023121 is about 10631.2332774707. The cubic root of 113023121 is about 483.4917840649.

Adding to 113023121 its reverse (121320311), we get a palindrome (234343432).

The spelling of 113023121 in words is "one hundred thirteen million, twenty-three thousand, one hundred twenty-one".