131004800816 has 20 divisors (see below), whose sum is σ = 254128005600. Its totient is φ = 65423380032.

The previous prime is 131004800813. The next prime is 131004800837. The reversal of 131004800816 is 618008400131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (131004800813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4925096 + ... + 4951623.

It is an arithmetic number, because the mean of its divisors is an integer number (12706400280).

Almost surely, 2^131004800816 is an apocalyptic number.

131004800816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

131004800816 is a deficient number, since it is larger than the sum of its proper divisors (123123204784).

131004800816 is an equidigital number, since it uses as much as digits as its factorization.

131004800816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9877556 (or 9877550 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The spelling of 131004800816 in words is "one hundred thirty-one billion, four million, eight hundred thousand, eight hundred sixteen".