313203113 has 8 divisors (see below), whose sum is σ = 321929160. Its totient is φ = 304490880.

The previous prime is 313203109. The next prime is 313203119. The reversal of 313203113 is 311302313.

It can be written as a sum of positive squares in 4 ways, for example, as 239878144 + 73324969 = 15488^2 + 8563^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 313203113 - 2² = 313203109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313203091 and 313203100.

It is not an unprimeable number, because it can be changed into a prime (313203119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56903 + ... + 62163.

It is an arithmetic number, because the mean of its divisors is an integer number (40241145).

Almost surely, 2^313203113 is an apocalyptic number.

It is an amenable number.

313203113 is a deficient number, since it is larger than the sum of its proper divisors (8726047).

313203113 is a wasteful number, since it uses less digits than its factorization.

313203113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6907.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 313203113 is about 17697.5453947716. The cubic root of 313203113 is about 679.1129675402.

Adding to 313203113 its reverse (311302313), we get a palindrome (624505426).

The spelling of 313203113 in words is "three hundred thirteen million, two hundred three thousand, one hundred thirteen".