123543043 has 8 divisors (see below), whose sum is σ = 133183008. Its totient is φ = 113922624.

The previous prime is 123543019. The next prime is 123543067. The reversal of 123543043 is 340345321.

It is an interprime number because it is at equal distance from previous prime (123543019) and next prime (123543067).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123543043 - 2⁵ = 123543011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123542999 and 123543017.

It is not an unprimeable number, because it can be changed into a prime (123543943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9930 + ... + 18592.

It is an arithmetic number, because the mean of its divisors is an integer number (16647876).

Almost surely, 2^123543043 is an apocalyptic number.

123543043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

123543043 is a deficient number, since it is larger than the sum of its proper divisors (9639965).

123543043 is a wasteful number, since it uses less digits than its factorization.

123543043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9773.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 123543043 is about 11114.9918128625. The cubic root of 123543043 is about 498.0497939490.

Adding to 123543043 its reverse (340345321), we get a palindrome (463888364).

The spelling of 123543043 in words is "one hundred twenty-three million, five hundred forty-three thousand, forty-three".