1123320113 has 2 divisors, whose sum is σ = 1123320114. Its totient is φ = 1123320112.

The previous prime is 1123320103. The next prime is 1123320127. The reversal of 1123320113 is 3110233211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 708464689 + 414855424 = 26617^2 + 20368^2 .

It is an emirp because it is prime and its reverse (3110233211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1123320113 - 2¹² = 1123316017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1123320091 and 1123320100.

It is not a weakly prime, because it can be changed into another prime (1123320103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561660056 + 561660057.

It is an arithmetic number, because the mean of its divisors is an integer number (561660057).

Almost surely, 2^1123320113 is an apocalyptic number.

It is an amenable number.

1123320113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123320113 is an equidigital number, since it uses as much as digits as its factorization.

1123320113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1123320113 is about 33515.9680301793. The cubic root of 1123320113 is about 1039.5239787129.

Adding to 1123320113 its reverse (3110233211), we get a palindrome (4233553324).

The spelling of 1123320113 in words is "one billion, one hundred twenty-three million, three hundred twenty thousand, one hundred thirteen".