12131987082 has 16 divisors (see below), whose sum is σ = 25046683392. Its totient is φ = 3913544160.

The previous prime is 12131987057. The next prime is 12131987173. The reversal of 12131987082 is 28078913121.

It is a super-2 number, since 2×12131987082² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 32612683 + ... + 32613054.

It is an arithmetic number, because the mean of its divisors is an integer number (1565417712).

Almost surely, 2^12131987082 is an apocalyptic number.

12131987082 is an abundant number, since it is smaller than the sum of its proper divisors (12914696310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12131987082 is a wasteful number, since it uses less digits than its factorization.

12131987082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65225773.

The product of its (nonzero) digits is 48384, while the sum is 42.

The spelling of 12131987082 in words is "twelve billion, one hundred thirty-one million, nine hundred eighty-seven thousand, eighty-two".