10990099109 has 4 divisors (see below), whose sum is σ = 11989199040. Its totient is φ = 9990999180.

The previous prime is 10990099093. The next prime is 10990099121. The reversal of 10990099109 is 90199009901.

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 10990099109 - 2⁴ = 10990099093 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 (10990099129) 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, 499549949 + ... + 499549970.

It is an arithmetic number, because the mean of its divisors is an integer number (2997299760).

Almost surely, 2^10990099109 is an apocalyptic number.

It is an amenable number.

10990099109 is a deficient number, since it is larger than the sum of its proper divisors (999099931).

10990099109 is an equidigital number, since it uses as much as digits as its factorization.

10990099109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999099930.

The product of its (nonzero) digits is 59049, while the sum is 47.

The spelling of 10990099109 in words is "ten billion, nine hundred ninety million, ninety-nine thousand, one hundred nine".