13124421043 has 4 divisors (see below), whose sum is σ = 13124661480. Its totient is φ = 13124180608.

The previous prime is 13124421029. The next prime is 13124421061. The reversal of 13124421043 is 34012442131.

13124421043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34012442131 = 673 ⋅50538547.

It is a cyclic number.

It is not a de Polignac number, because 13124421043 - 2⁹ = 13124420531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13124420999 and 13124421017.

It is not an unprimeable number, because it can be changed into a prime (13124421643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5448 + ... + 162106.

It is an arithmetic number, because the mean of its divisors is an integer number (3281165370).

Almost surely, 2^13124421043 is an apocalyptic number.

13124421043 is a deficient number, since it is larger than the sum of its proper divisors (240437).

13124421043 is an equidigital number, since it uses as much as digits as its factorization.

13124421043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240436.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 13124421043 its reverse (34012442131), we get a palindrome (47136863174).

The spelling of 13124421043 in words is "thirteen billion, one hundred twenty-four million, four hundred twenty-one thousand, forty-three".