311243417 has 8 divisors (see below), whose sum is σ = 318737760. Its totient is φ = 303760800.

The previous prime is 311243407. The next prime is 311243453. The reversal of 311243417 is 714342113.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311243417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311243407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75434 + ... + 79452.

It is an arithmetic number, because the mean of its divisors is an integer number (39842220).

Almost surely, 2^311243417 is an apocalyptic number.

It is an amenable number.

311243417 is a deficient number, since it is larger than the sum of its proper divisors (7494343).

311243417 is a wasteful number, since it uses less digits than its factorization.

311243417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5863.

The product of its digits is 2016, while the sum is 26.

The square root of 311243417 is about 17642.0921945216. The cubic root of 311243417 is about 677.6936113279.

The spelling of 311243417 in words is "three hundred eleven million, two hundred forty-three thousand, four hundred seventeen".