3031313 has 4 divisors (see below), whose sum is σ = 3061428. Its totient is φ = 3001200.

The previous prime is 3031291. The next prime is 3031319. The reversal of 3031313 is 3131303.

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 1227664 + 1803649 = 1108^2 + 1343^2 .

It is a cyclic number.

It is not a de Polignac number, because 3031313 - 2¹⁰ = 3030289 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3031319) 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, 14906 + ... + 15107.

It is an arithmetic number, because the mean of its divisors is an integer number (765357).

Almost surely, 2^3031313 is an apocalyptic number.

It is an amenable number.

3031313 is a deficient number, since it is larger than the sum of its proper divisors (30115).

3031313 is a wasteful number, since it uses less digits than its factorization.

3031313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30114.

The product of its (nonzero) digits is 81, while the sum is 14.

The square root of 3031313 is about 1741.0666270996. The cubic root of 3031313 is about 144.7250119187.

Adding to 3031313 its reverse (3131303), we get a palindrome (6162616).

The spelling of 3031313 in words is "three million, thirty-one thousand, three hundred thirteen".