12147020081087 has 16 divisors (see below), whose sum is σ = 12791280833760. Its totient is φ = 11503254776832.

The previous prime is 12147020081081. The next prime is 12147020081089. The reversal of 12147020081087 is 78018002074121.

It is a cyclic number.

It is not a de Polignac number, because 12147020081087 - 2⁶ = 12147020081023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12147020081081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 708809783 + ... + 708826919.

It is an arithmetic number, because the mean of its divisors is an integer number (799455052110).

Almost surely, 2^{12147020081087} is an apocalyptic number.

12147020081087 is a deficient number, since it is larger than the sum of its proper divisors (644260752673).

12147020081087 is a wasteful number, since it uses less digits than its factorization.

12147020081087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29402.

The product of its (nonzero) digits is 50176, while the sum is 41.

The spelling of 12147020081087 in words is "twelve trillion, one hundred forty-seven billion, twenty million, eighty-one thousand, eighty-seven".