13081372445124 has 243 divisors, whose sum is σ = 35791331745351. Its totient is φ = 4027688524800.

The previous prime is 13081372445117. The next prime is 13081372445129. The reversal of 13081372445124 is 42154427318031.

The square root of 13081372445124 is 3616818.

It is a perfect power (a square), and thus also a powerful number.

13081372445124 is a `hidden beast` number, since 1 + 3 + 0 + 8 + 13 + 72 + 445 + 124 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5045099976900 + 8036272468224 = 2246130^2 + 2834832^2 .

It is a super-2 number, since 2×13081372445124² (a number of 27 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 13081372445124.

It is not an unprimeable number, because it can be changed into a prime (13081372445129) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 21766010424 + ... + 21766011024.

Almost surely, 2^{13081372445124} is an apocalyptic number.

13081372445124 is the 3616818-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13081372445124

13081372445124 is an abundant number, since it is smaller than the sum of its proper divisors (22709959300227).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13081372445124 is an equidigital number, since it uses as much as digits as its factorization.

13081372445124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364 (or 682 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 13081372445124 in words is "thirteen trillion, eighty-one billion, three hundred seventy-two million, four hundred forty-five thousand, one hundred twenty-four".