11101200990 has 32 divisors (see below), whose sum is σ = 29064963456. Its totient is φ = 2691200160.

The previous prime is 11101200883. The next prime is 11101201037. The reversal of 11101200990 is 9900210111.

It is a self number, because there is not a number n which added to its sum of digits gives 11101200990.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 16819672 + ... + 16820331.

It is an arithmetic number, because the mean of its divisors is an integer number (908280108).

Almost surely, 2^11101200990 is an apocalyptic number.

11101200990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11101200990 is an abundant number, since it is smaller than the sum of its proper divisors (17963762466).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11101200990 is a wasteful number, since it uses less digits than its factorization.

11101200990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33640024.

The product of its (nonzero) digits is 162, while the sum is 24.

The spelling of 11101200990 in words is "eleven billion, one hundred one million, two hundred thousand, nine hundred ninety".