12103884643 has 4 divisors (see below), whose sum is σ = 12178141768. Its totient is φ = 12029627520.

The previous prime is 12103884607. The next prime is 12103884649. The reversal of 12103884643 is 34648830121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34648830121 = 43 ⋅805786747.

It is a cyclic number.

It is not a de Polignac number, because 12103884643 - 2⁹ = 12103884131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12103884596 and 12103884605.

It is not an unprimeable number, because it can be changed into a prime (12103884649) 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, 37128318 + ... + 37128643.

It is an arithmetic number, because the mean of its divisors is an integer number (3044535442).

Almost surely, 2^12103884643 is an apocalyptic number.

12103884643 is a deficient number, since it is larger than the sum of its proper divisors (74257125).

12103884643 is an equidigital number, since it uses as much as digits as its factorization.

12103884643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74257124.

The product of its (nonzero) digits is 110592, while the sum is 40.

The spelling of 12103884643 in words is "twelve billion, one hundred three million, eight hundred eighty-four thousand, six hundred forty-three".