131221240032411 has 96 divisors (see below), whose sum is σ = 206552998858752. Its totient is φ = 80057252689920.

The previous prime is 131221240032397. The next prime is 131221240032413. The reversal of 131221240032411 is 114230042122131.

131221240032411 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 2 + 1 + 240 + 0 + 3 + 2 + 411 = 666.

It is not a de Polignac number, because 131221240032411 - 2⁹ = 131221240031899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131221240032413) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 126286851 + ... + 127321683.

It is an arithmetic number, because the mean of its divisors is an integer number (2151593738112).

Almost surely, 2^{131221240032411} is an apocalyptic number.

131221240032411 is a deficient number, since it is larger than the sum of its proper divisors (75331758826341).

131221240032411 is a wasteful number, since it uses less digits than its factorization.

131221240032411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035193 (or 1035190 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 131221240032411 its reverse (114230042122131), we get a palindrome (245451282154542).

The spelling of 131221240032411 in words is "one hundred thirty-one trillion, two hundred twenty-one billion, two hundred forty million, thirty-two thousand, four hundred eleven".