13124335403525 has 12 divisors (see below), whose sum is σ = 16368246286692. Its totient is φ = 10438777751040.

The previous prime is 13124335403483. The next prime is 13124335403527. The reversal of 13124335403525 is 52530453342131.

It can be written as a sum of positive squares in 6 ways, for example, as 312846692929 + 12811488710596 = 559327^2 + 3579314^2 .

It is not a de Polignac number, because 13124335403525 - 2¹² = 13124335399429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13124335403527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1517259884 + ... + 1517268533.

It is an arithmetic number, because the mean of its divisors is an integer number (1364020523891).

Almost surely, 2^{13124335403525} is an apocalyptic number.

It is an amenable number.

13124335403525 is a deficient number, since it is larger than the sum of its proper divisors (3243910883167).

13124335403525 is a wasteful number, since it uses less digits than its factorization.

13124335403525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3034528600 (or 3034528595 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 41.

Adding to 13124335403525 its reverse (52530453342131), we get a palindrome (65654788745656).

The spelling of 13124335403525 in words is "thirteen trillion, one hundred twenty-four billion, three hundred thirty-five million, four hundred three thousand, five hundred twenty-five".