11011994900 has 18 divisors (see below), whose sum is σ = 23896029150. Its totient is φ = 4404797920.

The previous prime is 11011994899. The next prime is 11011994923. The reversal of 11011994900 is 949911011.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 3833838724 + 7178156176 = 61918^2 + 84724^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55059875 + ... + 55060074.

It is an arithmetic number, because the mean of its divisors is an integer number (1327557175).

Almost surely, 2^11011994900 is an apocalyptic number.

11011994900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11011994900 is an abundant number, since it is smaller than the sum of its proper divisors (12884034250).

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

11011994900 is a wasteful number, since it uses less digits than its factorization.

11011994900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110119963 (or 110119956 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 35.

The spelling of 11011994900 in words is "eleven billion, eleven million, nine hundred ninety-four thousand, nine hundred".