13124243122425 has 36 divisors (see below), whose sum is σ = 23950505584044. Its totient is φ = 6867528470400.

The previous prime is 13124243122409. The next prime is 13124243122427. The reversal of 13124243122425 is 52422134242131.

13124243122425 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 424 + 3 + 1 + 224 + 2 + 5 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 1152110276496 + 11972132845929 = 1073364^2 + 3460077^2 .

It is not a de Polignac number, because 13124243122425 - 2⁴ = 13124243122409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13124243122425.

It is not an unprimeable number, because it can be changed into a prime (13124243122427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 550270806 + ... + 550294655.

It is an arithmetic number, because the mean of its divisors is an integer number (665291821779).

Almost surely, 2^{13124243122425} is an apocalyptic number.

13124243122425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13124243122425 is a deficient number, since it is larger than the sum of its proper divisors (10826262461619).

13124243122425 is a wasteful number, since it uses less digits than its factorization.

13124243122425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100565530 (or 1100565522 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

Adding to 13124243122425 its reverse (52422134242131), we get a palindrome (65546377364556).

The spelling of 13124243122425 in words is "thirteen trillion, one hundred twenty-four billion, two hundred forty-three million, one hundred twenty-two thousand, four hundred twenty-five".