1123433249 has 2 divisors, whose sum is σ = 1123433250. Its totient is φ = 1123433248.

The previous prime is 1123433203. The next prime is 1123433261. The reversal of 1123433249 is 9423343211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1103568400 + 19864849 = 33220^2 + 4457^2 .

It is an emirp because it is prime and its reverse (9423343211) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123433249 is a prime.

It is not a weakly prime, because it can be changed into another prime (1123433449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561716624 + 561716625.

It is an arithmetic number, because the mean of its divisors is an integer number (561716625).

Almost surely, 2^1123433249 is an apocalyptic number.

It is an amenable number.

1123433249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123433249 is an equidigital number, since it uses as much as digits as its factorization.

1123433249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 32.

The square root of 1123433249 is about 33517.6557802004. The cubic root of 1123433249 is about 1039.5588763452.

The spelling of 1123433249 in words is "one billion, one hundred twenty-three million, four hundred thirty-three thousand, two hundred forty-nine".