12103443 has 24 divisors (see below), whose sum is σ = 19206720. Its totient is φ = 7283760.

The previous prime is 12103433. The next prime is 12103447. The reversal of 12103443 is 34430121.

It is not a de Polignac number, because 12103443 - 2²⁰ = 11054867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12103447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17380 + ... + 18062.

It is an arithmetic number, because the mean of its divisors is an integer number (800280).

Almost surely, 2^12103443 is an apocalyptic number.

12103443 is a deficient number, since it is larger than the sum of its proper divisors (7103277).

12103443 is a wasteful number, since it uses less digits than its factorization.

12103443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879 (or 876 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 12103443 is about 3479.0002874389. Note that the first 3 decimals coincide. The cubic root of 12103443 is about 229.5988154362.

Adding to 12103443 its reverse (34430121), we get a palindrome (46533564).

The spelling of 12103443 in words is "twelve million, one hundred three thousand, four hundred forty-three".