131241423343121 has 64 divisors (see below), whose sum is σ = 167692661047296. Its totient is φ = 99915305414400.

The previous prime is 131241423343091. The next prime is 131241423343123. The reversal of 131241423343121 is 121343324142131.

It is a de Polignac number, because none of the positive numbers 2^k-131241423343121 is a prime.

It is a super-2 number, since 2×131241423343121² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131241423343123) 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 63 ways as a sum of consecutive naturals, for example, 872987666 + ... + 873137988.

It is an arithmetic number, because the mean of its divisors is an integer number (2620197828864).

Almost surely, 2^{131241423343121} is an apocalyptic number.

It is an amenable number.

131241423343121 is a deficient number, since it is larger than the sum of its proper divisors (36451237704175).

131241423343121 is a wasteful number, since it uses less digits than its factorization.

131241423343121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152142.

The product of its digits is 41472, while the sum is 35.

Adding to 131241423343121 its reverse (121343324142131), we get a palindrome (252584747485252).

The spelling of 131241423343121 in words is "one hundred thirty-one trillion, two hundred forty-one billion, four hundred twenty-three million, three hundred forty-three thousand, one hundred twenty-one".