3163128131285 has 4 divisors (see below), whose sum is σ = 3795753757548. Its totient is φ = 2530502505024.

The previous prime is 3163128131279. The next prime is 3163128131299. The reversal of 3163128131285 is 5821318213613.

3163128131285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2220475495876 + 942652635409 = 1490126^2 + 970903^2 .

It is a cyclic number.

It is not a de Polignac number, because 3163128131285 - 2⁸ = 3163128131029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316312813124 + ... + 316312813133.

It is an arithmetic number, because the mean of its divisors is an integer number (948938439387).

Almost surely, 2^{3163128131285} is an apocalyptic number.

It is an amenable number.

3163128131285 is a deficient number, since it is larger than the sum of its proper divisors (632625626263).

3163128131285 is an equidigital number, since it uses as much as digits as its factorization.

3163128131285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632625626262.

The product of its digits is 207360, while the sum is 44.

The spelling of 3163128131285 in words is "three trillion, one hundred sixty-three billion, one hundred twenty-eight million, one hundred thirty-one thousand, two hundred eighty-five".