131835378341 has 4 divisors (see below), whose sum is σ = 136381425900. Its totient is φ = 127289330784.

The previous prime is 131835378331. The next prime is 131835378343. The reversal of 131835378341 is 143873538131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 143873538131 = 71 ⋅2026387861.

It can be written as a sum of positive squares in 2 ways, for example, as 26194127716 + 105641250625 = 161846^2 + 325025^2 .

It is a cyclic number.

It is not a de Polignac number, because 131835378341 - 2⁶ = 131835378277 is a prime.

It is a super-2 number, since 2×131835378341² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131835378343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2273023736 + ... + 2273023793.

It is an arithmetic number, because the mean of its divisors is an integer number (34095356475).

Almost surely, 2^131835378341 is an apocalyptic number.

It is an amenable number.

131835378341 is a deficient number, since it is larger than the sum of its proper divisors (4546047559).

131835378341 is an equidigital number, since it uses as much as digits as its factorization.

131835378341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4546047558.

The product of its digits is 725760, while the sum is 47.

The spelling of 131835378341 in words is "one hundred thirty-one billion, eight hundred thirty-five million, three hundred seventy-eight thousand, three hundred forty-one".