1123340116729 has 4 divisors (see below), whose sum is σ = 1159576894720. Its totient is φ = 1087103338740.

The previous prime is 1123340116727. The next prime is 1123340116751. The reversal of 1123340116729 is 9276110433211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1123340116729 - 2¹ = 1123340116727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1123340116691 and 1123340116700.

It is not an unprimeable number, because it can be changed into a prime (1123340116727) 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 3 ways as a sum of consecutive naturals, for example, 18118388949 + ... + 18118389010.

It is an arithmetic number, because the mean of its divisors is an integer number (289894223680).

Almost surely, 2^{1123340116729} is an apocalyptic number.

It is an amenable number.

1123340116729 is a deficient number, since it is larger than the sum of its proper divisors (36236777991).

1123340116729 is an equidigital number, since it uses as much as digits as its factorization.

1123340116729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36236777990.

The product of its (nonzero) digits is 54432, while the sum is 40.

The spelling of 1123340116729 in words is "one trillion, one hundred twenty-three billion, three hundred forty million, one hundred sixteen thousand, seven hundred twenty-nine".