1123322113 has 4 divisors (see below), whose sum is σ = 1124603860. Its totient is φ = 1122040368.

The previous prime is 1123322111. The next prime is 1123322147. The reversal of 1123322113 is 3112233211.

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 1049241664 + 74080449 = 32392^2 + 8607^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123322113 - 2¹ = 1123322111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123322111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 639558 + ... + 641311.

It is an arithmetic number, because the mean of its divisors is an integer number (281150965).

Almost surely, 2^1123322113 is an apocalyptic number.

It is an amenable number.

1123322113 is a deficient number, since it is larger than the sum of its proper divisors (1281747).

1123322113 is an equidigital number, since it uses as much as digits as its factorization.

1123322113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281746.

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

The square root of 1123322113 is about 33515.9978666905. The cubic root of 1123322113 is about 1039.5245956479.

Adding to 1123322113 its reverse (3112233211), we get a palindrome (4235555324).

The spelling of 1123322113 in words is "one billion, one hundred twenty-three million, three hundred twenty-two thousand, one hundred thirteen".