311744313 has 6 divisors (see below), whose sum is σ = 450297354. Its totient is φ = 207829536.

The previous prime is 311744297. The next prime is 311744347. The reversal of 311744313 is 313447113.

It can be written as a sum of positive squares in only one way, i.e., 192432384 + 119311929 = 13872^2 + 10923^2 .

It is not a de Polignac number, because 311744313 - 2⁴ = 311744297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (311740313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17319120 + ... + 17319137.

It is an arithmetic number, because the mean of its divisors is an integer number (75049559).

Almost surely, 2^311744313 is an apocalyptic number.

It is an amenable number.

311744313 is a deficient number, since it is larger than the sum of its proper divisors (138553041).

311744313 is a wasteful number, since it uses less digits than its factorization.

311744313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34638263 (or 34638260 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 311744313 is about 17656.2825362532. The cubic root of 311744313 is about 678.0569626091.

The spelling of 311744313 in words is "three hundred eleven million, seven hundred forty-four thousand, three hundred thirteen".