12131360784 has 30 divisors (see below), whose sum is σ = 33950961486. Its totient is φ = 4043786880.

The previous prime is 12131360779. The next prime is 12131360797. The reversal of 12131360784 is 48706313121.

It is a happy number.

12131360784 is a `hidden beast` number, since 1 + 213 + 1 + 360 + 7 + 84 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11037603600 + 1093757184 = 105060^2 + 33072^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42122637 + ... + 42122924.

Almost surely, 2^12131360784 is an apocalyptic number.

It is an amenable number.

12131360784 is an abundant number, since it is smaller than the sum of its proper divisors (21819600702).

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

12131360784 is a wasteful number, since it uses less digits than its factorization.

12131360784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84245575 (or 84245566 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 12131360784 in words is "twelve billion, one hundred thirty-one million, three hundred sixty thousand, seven hundred eighty-four".