999310313 has 4 divisors (see below), whose sum is σ = 1006938768. Its totient is φ = 991681860.

The previous prime is 999310309. The next prime is 999310321. The reversal of 999310313 is 313013999.

999310313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 999310313 - 2² = 999310309 is a prime.

It is a super-2 number, since 2×999310313² = 1997242203336315938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (999340313) 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, 3814031 + ... + 3814292.

It is an arithmetic number, because the mean of its divisors is an integer number (251734692).

Almost surely, 2^999310313 is an apocalyptic number.

It is an amenable number.

999310313 is a deficient number, since it is larger than the sum of its proper divisors (7628455).

999310313 is a wasteful number, since it uses less digits than its factorization.

999310313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7628454.

The product of its (nonzero) digits is 19683, while the sum is 38.

The square root of 999310313 is about 31611.8698118286. The cubic root of 999310313 is about 999.7700514611.

The spelling of 999310313 in words is "nine hundred ninety-nine million, three hundred ten thousand, three hundred thirteen".