1101996909 has 12 divisors (see below), whose sum is σ = 1714217596. Its totient is φ = 678151872.

The previous prime is 1101996881. The next prime is 1101996919. The reversal of 1101996909 is 9096991011.

1101996909 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 761594409 + 340402500 = 27597^2 + 18450^2 .

It is not a de Polignac number, because 1101996909 - 2⁵ = 1101996877 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101996919) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4709272 + ... + 4709505.

Almost surely, 2^1101996909 is an apocalyptic number.

It is an amenable number.

1101996909 is a deficient number, since it is larger than the sum of its proper divisors (612220687).

1101996909 is a wasteful number, since it uses less digits than its factorization.

1101996909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9418796 (or 9418793 counting only the distinct ones).

The product of its (nonzero) digits is 39366, while the sum is 45.

The square root of 1101996909 is about 33196.3387890894. The cubic root of 1101996909 is about 1032.9043952520.

The spelling of 1101996909 in words is "one billion, one hundred one million, nine hundred ninety-six thousand, nine hundred nine".