1123340239 has 12 divisors (see below), whose sum is σ = 1342062264. Its totient is φ = 936838224.

The previous prime is 1123340237. The next prime is 1123340303. The reversal of 1123340239 is 9320433211.

It is not a de Polignac number, because 1123340239 - 2¹ = 1123340237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123340237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 307989 + ... + 311614.

It is an arithmetic number, because the mean of its divisors is an integer number (111838522).

Almost surely, 2^1123340239 is an apocalyptic number.

1123340239 is a deficient number, since it is larger than the sum of its proper divisors (218722025).

1123340239 is an equidigital number, since it uses as much as digits as its factorization.

1123340239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619654 (or 619647 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 1123340239 is about 33516.2682737801. The cubic root of 1123340239 is about 1039.5301868971.

The spelling of 1123340239 in words is "one billion, one hundred twenty-three million, three hundred forty thousand, two hundred thirty-nine".