12581081308324 has 27 divisors (see below), whose sum is σ = 23388410811297. Its totient is φ = 5920452099264.

The previous prime is 12581081308291. The next prime is 12581081308361. The reversal of 12581081308324 is 42380318018521.

It is a happy number.

The square root of 12581081308324 is 3546982.

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

It can be written as a sum of positive squares in only one way, i.e., 9794959496100 + 2786121812224 = 3129690^2 + 1669168^2 .

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 120545227 + ... + 120649549.

Almost surely, 2^{12581081308324} is an apocalyptic number.

12581081308324 is the 3546982-nd square number.

It is an amenable number.

12581081308324 is a deficient number, since it is larger than the sum of its proper divisors (10807329502973).

12581081308324 is an frugal number, since it uses more digits than its factorization.

12581081308324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208684 (or 104342 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 46.

The spelling of 12581081308324 in words is "twelve trillion, five hundred eighty-one billion, eighty-one million, three hundred eight thousand, three hundred twenty-four".