131327724613 has 4 divisors (see below), whose sum is σ = 131361136768. Its totient is φ = 131294312460.

The previous prime is 131327724611. The next prime is 131327724617. The reversal of 131327724613 is 316427723131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131327724613 - 2¹ = 131327724611 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 (131327724611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16700181 + ... + 16708042.

It is an arithmetic number, because the mean of its divisors is an integer number (32840284192).

Almost surely, 2^131327724613 is an apocalyptic number.

It is an amenable number.

131327724613 is a deficient number, since it is larger than the sum of its proper divisors (33412155).

131327724613 is an equidigital number, since it uses as much as digits as its factorization.

131327724613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33412154.

The product of its digits is 127008, while the sum is 40.

The spelling of 131327724613 in words is "one hundred thirty-one billion, three hundred twenty-seven million, seven hundred twenty-four thousand, six hundred thirteen".