1123320329 has 2 divisors, whose sum is σ = 1123320330. Its totient is φ = 1123320328.

The previous prime is 1123320287. The next prime is 1123320343. The reversal of 1123320329 is 9230233211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 815388025 + 307932304 = 28555^2 + 17548^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123320329 - 2⁸ = 1123320073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1123320298 and 1123320307.

It is not a weakly prime, because it can be changed into another prime (1123320349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561660164 + 561660165.

It is an arithmetic number, because the mean of its divisors is an integer number (561660165).

Almost surely, 2^1123320329 is an apocalyptic number.

It is an amenable number.

1123320329 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123320329 is an equidigital number, since it uses as much as digits as its factorization.

1123320329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 1123320329 is about 33515.9712525238. The cubic root of 1123320329 is about 1039.5240453419.

The spelling of 1123320329 in words is "one billion, one hundred twenty-three million, three hundred twenty thousand, three hundred twenty-nine".