313312143 has 16 divisors (see below), whose sum is σ = 432954720. Its totient is φ = 201298944.

The previous prime is 313312123. The next prime is 313312213. The reversal of 313312143 is 341213313.

It is not a de Polignac number, because 313312143 - 2⁶ = 313312079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313312123) 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, 48555 + ... + 54627.

It is an arithmetic number, because the mean of its divisors is an integer number (27059670).

Almost surely, 2^313312143 is an apocalyptic number.

313312143 is a deficient number, since it is larger than the sum of its proper divisors (119642577).

313312143 is a wasteful number, since it uses less digits than its factorization.

313312143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6698.

The product of its digits is 648, while the sum is 21.

The square root of 313312143 is about 17700.6254974224. The cubic root of 313312143 is about 679.1917610276.

Adding to 313312143 its reverse (341213313), we get a palindrome (654525456).

The spelling of 313312143 in words is "three hundred thirteen million, three hundred twelve thousand, one hundred forty-three".