131115505404051 has 18 divisors (see below), whose sum is σ = 220309726768092. Its totient is φ = 74923145944920.

The previous prime is 131115505404049. The next prime is 131115505404083. The reversal of 131115505404051 is 150404505511131.

131115505404051 is a `hidden beast` number, since 1 + 3 + 1 + 1 + 1 + 550 + 54 + 0 + 4 + 0 + 51 = 666.

It is not a de Polignac number, because 131115505404051 - 2¹ = 131115505404049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131115505403997 and 131115505404015.

It is not an unprimeable number, because it can be changed into a prime (131115505408051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 148657035165 + ... + 148657036046.

It is an arithmetic number, because the mean of its divisors is an integer number (12239429264894).

Almost surely, 2^{131115505404051} is an apocalyptic number.

131115505404051 is a deficient number, since it is larger than the sum of its proper divisors (89194221364041).

131115505404051 is a wasteful number, since it uses less digits than its factorization.

131115505404051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297314071231 (or 297314071221 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 36.

The spelling of 131115505404051 in words is "one hundred thirty-one trillion, one hundred fifteen billion, five hundred five million, four hundred four thousand, fifty-one".