999001011101101 has 4 divisors (see below), whose sum is σ = 1002152433849372. Its totient is φ = 995849588352832.

The previous prime is 999001011101089. The next prime is 999001011101117. The reversal of 999001011101101 is 101101110100999.

999001011101101 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.

It can be written as a sum of positive squares in 2 ways, for example, as 165184854085476 + 833816157015625 = 12852426^2 + 28875875^2 .

It is a cyclic number.

It is not a de Polignac number, because 999001011101101 - 2¹⁹ = 999001010576813 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 (999001011101501) 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, 1575711373660 + ... + 1575711374293.

It is an arithmetic number, because the mean of its divisors is an integer number (250538108462343).

Almost surely, 2^{999001011101101} is an apocalyptic number.

It is an amenable number.

999001011101101 is a deficient number, since it is larger than the sum of its proper divisors (3151422748271).

999001011101101 is a wasteful number, since it uses less digits than its factorization.

999001011101101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3151422748270.

The product of its (nonzero) digits is 729, while the sum is 34.

The spelling of 999001011101101 in words is "nine hundred ninety-nine trillion, one billion, eleven million, one hundred one thousand, one hundred one".