13124420531 has 2 divisors, whose sum is σ = 13124420532. Its totient is φ = 13124420530.

The previous prime is 13124420527. The next prime is 13124420549. The reversal of 13124420531 is 13502442131.

It is a happy number.

13124420531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13124420531 - 2² = 13124420527 is a prime.

It is a super-2 number, since 2×13124420531² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13124420531.

It is not a weakly prime, because it can be changed into another prime (13124420521) 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 as a sum of consecutive naturals, namely, 6562210265 + 6562210266.

It is an arithmetic number, because the mean of its divisors is an integer number (6562210266).

Almost surely, 2^13124420531 is an apocalyptic number.

13124420531 is a deficient number, since it is larger than the sum of its proper divisors (1).

13124420531 is an equidigital number, since it uses as much as digits as its factorization.

13124420531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 13124420531 its reverse (13502442131), we get a palindrome (26626862662).

The spelling of 13124420531 in words is "thirteen billion, one hundred twenty-four million, four hundred twenty thousand, five hundred thirty-one".