989911200011 has 4 divisors (see below), whose sum is σ = 990267670632. Its totient is φ = 989554729392.

The previous prime is 989911199939. The next prime is 989911200053. The reversal of 989911200011 is 110002119989.

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 989911200011 - 2³⁸ = 715033293067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (989911200071) 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, 178231145 + ... + 178236698.

It is an arithmetic number, because the mean of its divisors is an integer number (247566917658).

Almost surely, 2^989911200011 is an apocalyptic number.

989911200011 is a deficient number, since it is larger than the sum of its proper divisors (356470621).

989911200011 is a wasteful number, since it uses less digits than its factorization.

989911200011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356470620.

The product of its (nonzero) digits is 11664, while the sum is 41.

The spelling of 989911200011 in words is "nine hundred eighty-nine billion, nine hundred eleven million, two hundred thousand, eleven".