123443103 has 48 divisors (see below), whose sum is σ = 207235584. Its totient is φ = 64915200.

The previous prime is 123443101. The next prime is 123443113. The reversal of 123443103 is 301344321.

It is not a de Polignac number, because 123443103 - 2¹ = 123443101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 123443103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123443101) 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 47 ways as a sum of consecutive naturals, for example, 116928 + ... + 117978.

It is an arithmetic number, because the mean of its divisors is an integer number (4317408).

Almost surely, 2^123443103 is an apocalyptic number.

123443103 is a deficient number, since it is larger than the sum of its proper divisors (83792481).

123443103 is a wasteful number, since it uses less digits than its factorization.

123443103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132 (or 1125 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 123443103 is about 11110.4951734835. The cubic root of 123443103 is about 497.9154587865.

Adding to 123443103 its reverse (301344321), we get a palindrome (424787424).

The spelling of 123443103 in words is "one hundred twenty-three million, four hundred forty-three thousand, one hundred three".