1123229993 has 2 divisors, whose sum is σ = 1123229994. Its totient is φ = 1123229992.

The previous prime is 1123229977. The next prime is 1123230041. The reversal of 1123229993 is 3999223211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 692584489 + 430645504 = 26317^2 + 20752^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123229993 - 2⁴ = 1123229977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1123229993.

It is not a weakly prime, because it can be changed into another prime (1123229963) 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, 561614996 + 561614997.

It is an arithmetic number, because the mean of its divisors is an integer number (561614997).

Almost surely, 2^1123229993 is an apocalyptic number.

It is an amenable number.

1123229993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123229993 is an equidigital number, since it uses as much as digits as its factorization.

1123229993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52488, while the sum is 41.

The square root of 1123229993 is about 33514.6235694212. The cubic root of 1123229993 is about 1039.4961788586.

The spelling of 1123229993 in words is "one billion, one hundred twenty-three million, two hundred twenty-nine thousand, nine hundred ninety-three".