131343231242005 has 16 divisors (see below), whose sum is σ = 159099987456000. Its totient is φ = 104087115274240.

The previous prime is 131343231241987. The next prime is 131343231242029. The reversal of 131343231242005 is 500242132343131.

It is not a de Polignac number, because 131343231242005 - 2⁷ = 131343231241877 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 287495980 + ... + 287952469.

It is an arithmetic number, because the mean of its divisors is an integer number (9943749216000).

Almost surely, 2^{131343231242005} is an apocalyptic number.

It is an amenable number.

131343231242005 is a deficient number, since it is larger than the sum of its proper divisors (27756756213995).

131343231242005 is a wasteful number, since it uses less digits than its factorization.

131343231242005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575448884.

The product of its (nonzero) digits is 51840, while the sum is 34.

Adding to 131343231242005 its reverse (500242132343131), we get a palindrome (631585363585136).

The spelling of 131343231242005 in words is "one hundred thirty-one trillion, three hundred forty-three billion, two hundred thirty-one million, two hundred forty-two thousand, five".