43123103 has 16 divisors (see below), whose sum is σ = 46902240. Its totient is φ = 39513600.

The previous prime is 43123099. The next prime is 43123127. The reversal of 43123103 is 30132134.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 43123103 - 2² = 43123099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43123153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153323 + ... + 153603.

It is an arithmetic number, because the mean of its divisors is an integer number (2931390).

Almost surely, 2^43123103 is an apocalyptic number.

43123103 is a deficient number, since it is larger than the sum of its proper divisors (3779137).

43123103 is a wasteful number, since it uses less digits than its factorization.

43123103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 43123103 is about 6566.8183315819. The cubic root of 43123103 is about 350.6738121635.

Adding to 43123103 its reverse (30132134), we get a palindrome (73255237).

The spelling of 43123103 in words is "forty-three million, one hundred twenty-three thousand, one hundred three".