113343221 has 4 divisors (see below), whose sum is σ = 113396652. Its totient is φ = 113289792.

The previous prime is 113343211. The next prime is 113343253. The reversal of 113343221 is 122343311.

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 85359121 + 27984100 = 9239^2 + 5290^2 .

It is a cyclic number.

It is not a de Polignac number, because 113343221 - 2¹⁰ = 113342197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113343193 and 113343202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113343211) 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, 23396 + ... + 27821.

It is an arithmetic number, because the mean of its divisors is an integer number (28349163).

Almost surely, 2^113343221 is an apocalyptic number.

It is an amenable number.

113343221 is a deficient number, since it is larger than the sum of its proper divisors (53431).

113343221 is an equidigital number, since it uses as much as digits as its factorization.

113343221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53430.

The product of its digits is 432, while the sum is 20.

The square root of 113343221 is about 10646.2773305978. The cubic root of 113343221 is about 483.9477964892.

Adding to 113343221 its reverse (122343311), we get a palindrome (235686532).

The spelling of 113343221 in words is "one hundred thirteen million, three hundred forty-three thousand, two hundred twenty-one".