311713663 has 4 divisors (see below), whose sum is σ = 322462440. Its totient is φ = 300964888.

The previous prime is 311713657. The next prime is 311713673. The reversal of 311713663 is 366317113.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 311713663 - 2⁹ = 311713151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311713613) 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, 5374345 + ... + 5374402.

It is an arithmetic number, because the mean of its divisors is an integer number (80615610).

Almost surely, 2^311713663 is an apocalyptic number.

311713663 is a deficient number, since it is larger than the sum of its proper divisors (10748777).

311713663 is a wasteful number, since it uses less digits than its factorization.

311713663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10748776.

The product of its digits is 6804, while the sum is 31.

The square root of 311713663 is about 17655.4145519158. The cubic root of 311713663 is about 678.0347402021.

The spelling of 311713663 in words is "three hundred eleven million, seven hundred thirteen thousand, six hundred sixty-three".