131003561838905 has 24 divisors (see below), whose sum is σ = 182890217007432. Its totient is φ = 89821219310592.

The previous prime is 131003561838893. The next prime is 131003561838913. The reversal of 131003561838905 is 509838165300131.

It can be written as a sum of positive squares in 4 ways, for example, as 12772103620864 + 118231458218041 = 3573808^2 + 10873429^2 .

It is a de Polignac number, because none of the positive numbers 2^k-131003561838905 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26898392 + ... + 31393161.

It is an arithmetic number, because the mean of its divisors is an integer number (7620425708643).

Almost surely, 2^{131003561838905} is an apocalyptic number.

It is an amenable number.

131003561838905 is a deficient number, since it is larger than the sum of its proper divisors (51886655168527).

131003561838905 is an equidigital number, since it uses as much as digits as its factorization.

131003561838905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58300745 (or 58300738 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 53.

The spelling of 131003561838905 in words is "one hundred thirty-one trillion, three billion, five hundred sixty-one million, eight hundred thirty-eight thousand, nine hundred five".