13123043 has 4 divisors (see below), whose sum is σ = 13195728. Its totient is φ = 13050360.

The previous prime is 13123039. The next prime is 13123057. The reversal of 13123043 is 34032131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34032131 = 7 ⋅4861733.

It is a cyclic number.

It is not a de Polignac number, because 13123043 - 2² = 13123039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13123003) 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 3 ways as a sum of consecutive naturals, for example, 36071 + ... + 36432.

It is an arithmetic number, because the mean of its divisors is an integer number (3298932).

Almost surely, 2^13123043 is an apocalyptic number.

13123043 is a deficient number, since it is larger than the sum of its proper divisors (72685).

13123043 is an equidigital number, since it uses as much as digits as its factorization.

13123043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72684.

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

The square root of 13123043 is about 3622.5740848187. The cubic root of 13123043 is about 235.8729745891.

Adding to 13123043 its reverse (34032131), we get a palindrome (47155174).

The spelling of 13123043 in words is "thirteen million, one hundred twenty-three thousand, forty-three".