131301315309 has 4 divisors (see below), whose sum is σ = 175068420416. Its totient is φ = 87534210204.

The previous prime is 131301315293. The next prime is 131301315407. The reversal of 131301315309 is 903513103131.

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 not a de Polignac number, because 131301315309 - 2⁴ = 131301315293 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 (131301315809) 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, 21883552549 + ... + 21883552554.

It is an arithmetic number, because the mean of its divisors is an integer number (43767105104).

Almost surely, 2^131301315309 is an apocalyptic number.

It is an amenable number.

131301315309 is a deficient number, since it is larger than the sum of its proper divisors (43767105107).

131301315309 is an equidigital number, since it uses as much as digits as its factorization.

131301315309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43767105106.

The product of its (nonzero) digits is 3645, while the sum is 30.

The spelling of 131301315309 in words is "one hundred thirty-one billion, three hundred one million, three hundred fifteen thousand, three hundred nine".