130672108681 has 4 divisors (see below), whose sum is σ = 134203787332. Its totient is φ = 127140430032.

The previous prime is 130672108631. The next prime is 130672108691. The reversal of 130672108681 is 186801276031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 186801276031 = 601 ⋅310817431.

It can be written as a sum of positive squares in 2 ways, for example, as 79769529225 + 50902579456 = 282435^2 + 225616^2 .

It is a cyclic number.

It is not a de Polignac number, because 130672108681 - 2¹¹ = 130672106633 is a prime.

It is a super-2 number, since 2×130672108681² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130672108631) 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 in 3 ways as a sum of consecutive naturals, for example, 1765839270 + ... + 1765839343.

It is an arithmetic number, because the mean of its divisors is an integer number (33550946833).

Almost surely, 2^130672108681 is an apocalyptic number.

It is an amenable number.

130672108681 is a deficient number, since it is larger than the sum of its proper divisors (3531678651).

130672108681 is an equidigital number, since it uses as much as digits as its factorization.

130672108681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3531678650.

The product of its (nonzero) digits is 96768, while the sum is 43.

The spelling of 130672108681 in words is "one hundred thirty billion, six hundred seventy-two million, one hundred eight thousand, six hundred eighty-one".