9916123043 has 4 divisors (see below), whose sum is σ = 9994202880. Its totient is φ = 9838043208.

The previous prime is 9916123003. The next prime is 9916123073. The reversal of 9916123043 is 3403216199.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3403216199 = 179 ⋅19012381.

It is a cyclic number.

It is not a de Polignac number, because 9916123043 - 2²⁰ = 9915074467 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9916122988 and 9916123006.

It is not an unprimeable number, because it can be changed into a prime (9916123003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39039728 + ... + 39039981.

It is an arithmetic number, because the mean of its divisors is an integer number (2498550720).

Almost surely, 2^9916123043 is an apocalyptic number.

9916123043 is a deficient number, since it is larger than the sum of its proper divisors (78079837).

9916123043 is a wasteful number, since it uses less digits than its factorization.

9916123043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78079836.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 9916123043 is about 99579.7320894167. The cubic root of 9916123043 is about 2148.3941889297.

The spelling of 9916123043 in words is "nine billion, nine hundred sixteen million, one hundred twenty-three thousand, forty-three".