131431242558 has 64 divisors (see below), whose sum is σ = 327777311232. Its totient is φ = 34132500480.

The previous prime is 131431242493. The next prime is 131431242559. The reversal of 131431242558 is 855242134131.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131431242559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3414910 + ... + 3453182.

It is an arithmetic number, because the mean of its divisors is an integer number (5121520488).

Almost surely, 2^131431242558 is an apocalyptic number.

131431242558 is an abundant number, since it is smaller than the sum of its proper divisors (196346068674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131431242558 is a wasteful number, since it uses less digits than its factorization.

131431242558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45729.

The product of its digits is 115200, while the sum is 39.

Adding to 131431242558 its reverse (855242134131), we get a palindrome (986673376689).

The spelling of 131431242558 in words is "one hundred thirty-one billion, four hundred thirty-one million, two hundred forty-two thousand, five hundred fifty-eight".