1123213183 has 2 divisors, whose sum is σ = 1123213184. Its totient is φ = 1123213182.

The previous prime is 1123213129. The next prime is 1123213193. The reversal of 1123213183 is 3813123211.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123213183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123213193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561606591 + 561606592.

It is an arithmetic number, because the mean of its divisors is an integer number (561606592).

Almost surely, 2^1123213183 is an apocalyptic number.

1123213183 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123213183 is an equidigital number, since it uses as much as digits as its factorization.

1123213183 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 25.

The square root of 1123213183 is about 33514.3727824347. The cubic root of 1123213183 is about 1039.4909932130.

Adding to 1123213183 its reverse (3813123211), we get a palindrome (4936336394).

The spelling of 1123213183 in words is "one billion, one hundred twenty-three million, two hundred thirteen thousand, one hundred eighty-three".