11101200989 has 4 divisors (see below), whose sum is σ = 11266890624. Its totient is φ = 10935511356.

The previous prime is 11101200883. The next prime is 11101201037. The reversal of 11101200989 is 98900210111.

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 11101200989 - 2²⁴ = 11084423773 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 (11101200589) 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 3 ways as a sum of consecutive naturals, for example, 82844717 + ... + 82844850.

It is an arithmetic number, because the mean of its divisors is an integer number (2816722656).

Almost surely, 2^11101200989 is an apocalyptic number.

It is an amenable number.

11101200989 is a deficient number, since it is larger than the sum of its proper divisors (165689635).

11101200989 is an equidigital number, since it uses as much as digits as its factorization.

11101200989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165689634.

The product of its (nonzero) digits is 1296, while the sum is 32.

The spelling of 11101200989 in words is "eleven billion, one hundred one million, two hundred thousand, nine hundred eighty-nine".