12032505287 has 4 divisors (see below), whose sum is σ = 13126369416. Its totient is φ = 10938641160.

The previous prime is 12032505271. The next prime is 12032505301. The reversal of 12032505287 is 78250523021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78250523021 = 11 ⋅7113683911.

It is a cyclic number.

It is not a de Polignac number, because 12032505287 - 2⁴ = 12032505271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12032505787) 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, 546932048 + ... + 546932069.

It is an arithmetic number, because the mean of its divisors is an integer number (3281592354).

Almost surely, 2^12032505287 is an apocalyptic number.

12032505287 is a deficient number, since it is larger than the sum of its proper divisors (1093864129).

12032505287 is a wasteful number, since it uses less digits than its factorization.

12032505287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093864128.

The product of its (nonzero) digits is 33600, while the sum is 35.

The spelling of 12032505287 in words is "twelve billion, thirty-two million, five hundred five thousand, two hundred eighty-seven".