999113311999 has 4 divisors (see below), whose sum is σ = 1089941794920. Its totient is φ = 908284829080.

The previous prime is 999113311969. The next prime is 999113312003.

999113311999 is nontrivially palindromic in base 10.

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 999113311999 - 2⁵ = 999113311967 is a prime.

It is a super-2 number, since 2×999113311999² (a number of 25 digits) contains 22 as substring.

It is a zygodrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 999113311999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999113311969) 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, 45414241444 + ... + 45414241465.

It is an arithmetic number, because the mean of its divisors is an integer number (272485448730).

Almost surely, 2^999113311999 is an apocalyptic number.

999113311999 is a deficient number, since it is larger than the sum of its proper divisors (90828482921).

999113311999 is a wasteful number, since it uses less digits than its factorization.

999113311999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90828482920.

The product of its digits is 4782969, while the sum is 64.

The spelling of 999113311999 in words is "nine hundred ninety-nine billion, one hundred thirteen million, three hundred eleven thousand, nine hundred ninety-nine".