131231009984 has 14 divisors (see below), whose sum is σ = 260411535564. Its totient is φ = 65615504960.

The previous prime is 131231009983. The next prime is 131231009999. The reversal of 131231009984 is 489900132131.

131231009984 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (131231009983) 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 as a sum of consecutive naturals, namely, 1025242202 + ... + 1025242329.

Almost surely, 2^131231009984 is an apocalyptic number.

It is an amenable number.

131231009984 is a deficient number, since it is larger than the sum of its proper divisors (129180525580).

131231009984 is an equidigital number, since it uses as much as digits as its factorization.

131231009984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2050484543 (or 2050484533 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 41.

The spelling of 131231009984 in words is "one hundred thirty-one billion, two hundred thirty-one million, nine thousand, nine hundred eighty-four".