131252813018 has 8 divisors (see below), whose sum is σ = 196977813012. Its totient is φ = 65593542016.

The previous prime is 131252813017. The next prime is 131252813179. The reversal of 131252813018 is 810318252131.

It can be written as a sum of positive squares in 2 ways, for example, as 99727745209 + 31525067809 = 315797^2 + 177553^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (131252813017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16427255 + ... + 16435242.

Almost surely, 2^131252813018 is an apocalyptic number.

131252813018 is a deficient number, since it is larger than the sum of its proper divisors (65724999994).

131252813018 is a wasteful number, since it uses less digits than its factorization.

131252813018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32864496.

The product of its (nonzero) digits is 11520, while the sum is 35.

The spelling of 131252813018 in words is "one hundred thirty-one billion, two hundred fifty-two million, eight hundred thirteen thousand, eighteen".