313312878163 has 4 divisors (see below), whose sum is σ = 313362862560. Its totient is φ = 313262893768.

The previous prime is 313312878161. The next prime is 313312878187. The reversal of 313312878163 is 361878213313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 361878213313 = 86711 ⋅4173383.

It is a cyclic number.

It is not a de Polignac number, because 313312878163 - 2¹ = 313312878161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313312878161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24982795 + ... + 24995332.

It is an arithmetic number, because the mean of its divisors is an integer number (78340715640).

Almost surely, 2^313312878163 is an apocalyptic number.

313312878163 is a deficient number, since it is larger than the sum of its proper divisors (49984397).

313312878163 is an equidigital number, since it uses as much as digits as its factorization.

313312878163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49984396.

The product of its digits is 435456, while the sum is 46.

The spelling of 313312878163 in words is "three hundred thirteen billion, three hundred twelve million, eight hundred seventy-eight thousand, one hundred sixty-three".