99999311 has 8 divisors (see below), whose sum is σ = 102363264. Its totient is φ = 97662040.

The previous prime is 99999307. The next prime is 99999323. The reversal of 99999311 is 11399999.

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

It is a cyclic number.

It is not a de Polignac number, because 99999311 - 2² = 99999307 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 99999311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99999611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1016 + ... + 14178.

It is an arithmetic number, because the mean of its divisors is an integer number (12795408).

Almost surely, 2^99999311 is an apocalyptic number.

99999311 is a deficient number, since it is larger than the sum of its proper divisors (2363953).

99999311 is a wasteful number, since it uses less digits than its factorization.

99999311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13341.

The product of its digits is 177147, while the sum is 50.

The square root of 99999311 is about 9999.9655499407. The cubic root of 99999311 is about 464.1578173406.

The spelling of 99999311 in words is "ninety-nine million, nine hundred ninety-nine thousand, three hundred eleven".