1287105325099 has 16 divisors (see below), whose sum is σ = 1486746092160. Its totient is φ = 1101239775360.

The previous prime is 1287105325067. The next prime is 1287105325109. The reversal of 1287105325099 is 9905235017821.

It is a cyclic number.

It is not a de Polignac number, because 1287105325099 - 2⁵ = 1287105325067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1287105323099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13424272 + ... + 13519810.

It is an arithmetic number, because the mean of its divisors is an integer number (92921630760).

Almost surely, 2^{1287105325099} is an apocalyptic number.

1287105325099 is a deficient number, since it is larger than the sum of its proper divisors (199640767061).

1287105325099 is a wasteful number, since it uses less digits than its factorization.

1287105325099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167610.

The product of its (nonzero) digits is 1360800, while the sum is 52.

The spelling of 1287105325099 in words is "one trillion, two hundred eighty-seven billion, one hundred five million, three hundred twenty-five thousand, ninety-nine".