1123223113 has 2 divisors, whose sum is σ = 1123223114. Its totient is φ = 1123223112.

The previous prime is 1123223111. The next prime is 1123223141. The reversal of 1123223113 is 3113223211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1104099984 + 19123129 = 33228^2 + 4373^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123223113 - 2¹ = 1123223111 is a prime.

Together with 1123223111, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1123223111) 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 as a sum of consecutive naturals, namely, 561611556 + 561611557.

It is an arithmetic number, because the mean of its divisors is an integer number (561611557).

Almost surely, 2^1123223113 is an apocalyptic number.

It is an amenable number.

1123223113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123223113 is an equidigital number, since it uses as much as digits as its factorization.

1123223113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216, while the sum is 19.

The square root of 1123223113 is about 33514.5209275025. The cubic root of 1123223113 is about 1039.4940564828.

Adding to 1123223113 its reverse (3113223211), we get a palindrome (4236446324).

The spelling of 1123223113 in words is "one billion, one hundred twenty-three million, two hundred twenty-three thousand, one hundred thirteen".