220305113 has 4 divisors (see below), whose sum is σ = 251777280. Its totient is φ = 188832948.

The previous prime is 220305103. The next prime is 220305149. The reversal of 220305113 is 311503022.

220305113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 311503022 = 2 ⋅155751511.

It is a cyclic number.

It is not a de Polignac number, because 220305113 - 2⁴ = 220305097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 220305091 and 220305100.

It is not an unprimeable number, because it can be changed into a prime (220305103) 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, 15736073 + ... + 15736086.

It is an arithmetic number, because the mean of its divisors is an integer number (62944320).

Almost surely, 2^220305113 is an apocalyptic number.

It is an amenable number.

220305113 is a deficient number, since it is larger than the sum of its proper divisors (31472167).

220305113 is an equidigital number, since it uses as much as digits as its factorization.

220305113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31472166.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 220305113 is about 14842.6787676619. The cubic root of 220305113 is about 603.9600219508.

Adding to 220305113 its reverse (311503022), we get a palindrome (531808135).

The spelling of 220305113 in words is "two hundred twenty million, three hundred five thousand, one hundred thirteen".