999320311 has 16 divisors (see below), whose sum is σ = 1099929600. Its totient is φ = 900378720.

The previous prime is 999320279. The next prime is 999320321. The reversal of 999320311 is 113023999.

It is a cyclic number.

It is not a de Polignac number, because 999320311 - 2⁵ = 999320279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999320321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 644365 + ... + 645913.

It is an arithmetic number, because the mean of its divisors is an integer number (68745600).

Almost surely, 2^999320311 is an apocalyptic number.

999320311 is a deficient number, since it is larger than the sum of its proper divisors (100609289).

999320311 is a wasteful number, since it uses less digits than its factorization.

999320311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2046.

The product of its (nonzero) digits is 13122, while the sum is 37.

The square root of 999320311 is about 31612.0279482351. The cubic root of 999320311 is about 999.7733856498.

The spelling of 999320311 in words is "nine hundred ninety-nine million, three hundred twenty thousand, three hundred eleven".