1123234009 has 2 divisors, whose sum is σ = 1123234010. Its totient is φ = 1123234008.

The previous prime is 1123233983. The next prime is 1123234043. The reversal of 1123234009 is 9004323211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 875864025 + 247369984 = 29595^2 + 15728^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123234009 - 2¹⁵ = 1123201241 is a prime.

It is not a weakly prime, because it can be changed into another prime (1123234069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561617004 + 561617005.

It is an arithmetic number, because the mean of its divisors is an integer number (561617005).

Almost surely, 2^1123234009 is an apocalyptic number.

It is an amenable number.

1123234009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123234009 is an equidigital number, since it uses as much as digits as its factorization.

1123234009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 1123234009 is about 33514.6834835121. The cubic root of 1123234009 is about 1039.4974177297.

The spelling of 1123234009 in words is "one billion, one hundred twenty-three million, two hundred thirty-four thousand, nine".