1123530223 has 2 divisors, whose sum is σ = 1123530224. Its totient is φ = 1123530222.

The previous prime is 1123530217. The next prime is 1123530263. The reversal of 1123530223 is 3220353211.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123530223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1123530194 and 1123530203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123530263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561765111 + 561765112.

It is an arithmetic number, because the mean of its divisors is an integer number (561765112).

Almost surely, 2^1123530223 is an apocalyptic number.

1123530223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123530223 is an equidigital number, since it uses as much as digits as its factorization.

1123530223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 1123530223 is about 33519.1023596993. The cubic root of 1123530223 is about 1039.5887868248.

Adding to 1123530223 its reverse (3220353211), we get a palindrome (4343883434).

The spelling of 1123530223 in words is "one billion, one hundred twenty-three million, five hundred thirty thousand, two hundred twenty-three".