3999103123 has 4 divisors (see below), whose sum is σ = 4001386168. Its totient is φ = 3996820080.

The previous prime is 3999103093. The next prime is 3999103133. The reversal of 3999103123 is 3213019993.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3999103123 - 2⁵ = 3999103091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3999103133) 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, 1138893 + ... + 1142398.

It is an arithmetic number, because the mean of its divisors is an integer number (1000346542).

Almost surely, 2^3999103123 is an apocalyptic number.

3999103123 is a deficient number, since it is larger than the sum of its proper divisors (2283045).

3999103123 is a wasteful number, since it uses less digits than its factorization.

3999103123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2283044.

The product of its (nonzero) digits is 39366, while the sum is 40.

The square root of 3999103123 is about 63238.4623706175. The cubic root of 3999103123 is about 1587.2824011421.

The spelling of 3999103123 in words is "three billion, nine hundred ninety-nine million, one hundred three thousand, one hundred twenty-three".