11205992109 has 16 divisors (see below), whose sum is σ = 16645507200. Its totient is φ = 6658201536.

The previous prime is 11205992101. The next prime is 11205992143. The reversal of 11205992109 is 90129950211.

It is not a de Polignac number, because 11205992109 - 2³ = 11205992101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11205992101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4952889 + ... + 4955150.

It is an arithmetic number, because the mean of its divisors is an integer number (1040344200).

Almost surely, 2^11205992109 is an apocalyptic number.

It is an amenable number.

11205992109 is a deficient number, since it is larger than the sum of its proper divisors (5439515091).

11205992109 is a wasteful number, since it uses less digits than its factorization.

11205992109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9908084.

The product of its (nonzero) digits is 14580, while the sum is 39.

The spelling of 11205992109 in words is "eleven billion, two hundred five million, nine hundred ninety-two thousand, one hundred nine".