11091919100 has 36 divisors (see below), whose sum is σ = 24159000600. Its totient is φ = 4420263360.

The previous prime is 11091919061. The next prime is 11091919117. The reversal of 11091919100 is 191919011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 179270 + ... + 233069.

It is an arithmetic number, because the mean of its divisors is an integer number (671083350).

Almost surely, 2^11091919100 is an apocalyptic number.

11091919100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11091919100 is an abundant number, since it is smaller than the sum of its proper divisors (13067081500).

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

11091919100 is a wasteful number, since it uses less digits than its factorization.

11091919100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412622 (or 412615 counting only the distinct ones).

The product of its (nonzero) digits is 729, while the sum is 32.

The spelling of 11091919100 in words is "eleven billion, ninety-one million, nine hundred nineteen thousand, one hundred".