131373126365 has 8 divisors (see below), whose sum is σ = 169774501848. Its totient is φ = 97014000960.

The previous prime is 131373126317. The next prime is 131373126389. The reversal of 131373126365 is 563621373131.

It can be written as a sum of positive squares in 4 ways, for example, as 30372472729 + 101000653636 = 174277^2 + 317806^2 .

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

It is not a de Polignac number, because 131373126365 - 2¹² = 131373122269 is a prime.

It is a super-2 number, since 2×131373126365² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1010562446 + ... + 1010562575.

It is an arithmetic number, because the mean of its divisors is an integer number (21221812731).

Almost surely, 2^131373126365 is an apocalyptic number.

It is an amenable number.

131373126365 is a deficient number, since it is larger than the sum of its proper divisors (38401375483).

131373126365 is a wasteful number, since it uses less digits than its factorization.

131373126365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2021125039.

The product of its digits is 204120, while the sum is 41.

Adding to 131373126365 its reverse (563621373131), we get a palindrome (694994499496).

The spelling of 131373126365 in words is "one hundred thirty-one billion, three hundred seventy-three million, one hundred twenty-six thousand, three hundred sixty-five".