131365108904 has 16 divisors (see below), whose sum is σ = 246358132020. Its totient is φ = 65669607040.

The previous prime is 131365108883. The next prime is 131365108909. The reversal of 131365108904 is 409801563131.

It can be written as a sum of positive squares in 2 ways, for example, as 130536244804 + 828864100 = 361298^2 + 28790^2 .

It is not an unprimeable number, because it can be changed into a prime (131365108909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1575239 + ... + 1656534.

Almost surely, 2^131365108904 is an apocalyptic number.

It is an amenable number.

131365108904 is a deficient number, since it is larger than the sum of its proper divisors (114993023116).

131365108904 is a wasteful number, since it uses less digits than its factorization.

131365108904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3236860 (or 3236856 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 41.

The spelling of 131365108904 in words is "one hundred thirty-one billion, three hundred sixty-five million, one hundred eight thousand, nine hundred four".