113224121 has 4 divisors (see below), whose sum is σ = 116876544. Its totient is φ = 109571700.

The previous prime is 113224093. The next prime is 113224129. The reversal of 113224121 is 121422311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 121422311 = 53 ⋅2290987.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113224121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 113224121.

It is not an unprimeable number, because it can be changed into a prime (113224129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1826165 + ... + 1826226.

It is an arithmetic number, because the mean of its divisors is an integer number (29219136).

Almost surely, 2^113224121 is an apocalyptic number.

It is an amenable number.

113224121 is a deficient number, since it is larger than the sum of its proper divisors (3652423).

113224121 is an equidigital number, since it uses as much as digits as its factorization.

113224121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3652422.

The product of its digits is 96, while the sum is 17.

The square root of 113224121 is about 10640.6823559394. The cubic root of 113224121 is about 483.7782278040.

Adding to 113224121 its reverse (121422311), we get a palindrome (234646432).

The spelling of 113224121 in words is "one hundred thirteen million, two hundred twenty-four thousand, one hundred twenty-one".