1123323767539 has 2 divisors, whose sum is σ = 1123323767540. Its totient is φ = 1123323767538.

The previous prime is 1123323767537. The next prime is 1123323767549. The reversal of 1123323767539 is 9357673233211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1123323767539 - 2¹ = 1123323767537 is a prime.

Together with 1123323767537, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1123323767537) 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 as a sum of consecutive naturals, namely, 561661883769 + 561661883770.

It is an arithmetic number, because the mean of its divisors is an integer number (561661883770).

Almost surely, 2^{1123323767539} is an apocalyptic number.

1123323767539 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123323767539 is an equidigital number, since it uses as much as digits as its factorization.

1123323767539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4286520, while the sum is 52.

The spelling of 1123323767539 in words is "one trillion, one hundred twenty-three billion, three hundred twenty-three million, seven hundred sixty-seven thousand, five hundred thirty-nine".