131251442131 has 8 divisors (see below), whose sum is σ = 134277938784. Its totient is φ = 128257664640.

The previous prime is 131251442107. The next prime is 131251442269. The reversal of 131251442131 is 131244152131.

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

It is a cyclic number.

It is not a de Polignac number, because 131251442131 - 2⁵ = 131251442099 is a prime.

It is a super-2 number, since 2×131251442131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131251442131.

It is not an unprimeable number, because it can be changed into a prime (131251443131) 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 7 ways as a sum of consecutive naturals, for example, 8171676 + ... + 8187721.

It is an arithmetic number, because the mean of its divisors is an integer number (16784742348).

Almost surely, 2^131251442131 is an apocalyptic number.

131251442131 is a deficient number, since it is larger than the sum of its proper divisors (3026496653).

131251442131 is a wasteful number, since it uses less digits than its factorization.

131251442131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16359581.

The product of its digits is 2880, while the sum is 28.

Adding to 131251442131 its reverse (131244152131), we get a palindrome (262495594262).

Subtracting from 131251442131 its reverse (131244152131), we obtain a square (7290000 = 2700²).

The spelling of 131251442131 in words is "one hundred thirty-one billion, two hundred fifty-one million, four hundred forty-two thousand, one hundred thirty-one".