131042404010421 has 12 divisors (see below), whose sum is σ = 190068881062060. Its totient is φ = 86999106395520.

The previous prime is 131042404010417. The next prime is 131042404010447. The reversal of 131042404010421 is 124010404240131.

131042404010421 is a `hidden beast` number, since 1 + 3 + 10 + 4 + 240 + 401 + 0 + 4 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 101333516267025 + 29708887743396 = 10066455^2 + 5450586^2 .

It is not a de Polignac number, because 131042404010421 - 2² = 131042404010417 is a prime.

It is a super-2 number, since 2×131042404010421² (a number of 29 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 (131042404010411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30208020886 + ... + 30208025223.

Almost surely, 2^{131042404010421} is an apocalyptic number.

It is an amenable number.

131042404010421 is a deficient number, since it is larger than the sum of its proper divisors (59026477051639).

131042404010421 is a wasteful number, since it uses less digits than its factorization.

131042404010421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60416046356 (or 60416046353 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 131042404010421 its reverse (124010404240131), we get a palindrome (255052808250552).

The spelling of 131042404010421 in words is "one hundred thirty-one trillion, forty-two billion, four hundred four million, ten thousand, four hundred twenty-one".