1109785011 has 8 divisors (see below), whose sum is σ = 1488792000. Its totient is φ = 735317352.

The previous prime is 1109784989. The next prime is 1109785043. The reversal of 1109785011 is 1105879011.

1109785011 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1109785011 - 2⁶ = 1109784947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1109785081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1134261 + ... + 1135238.

It is an arithmetic number, because the mean of its divisors is an integer number (186099000).

Almost surely, 2^1109785011 is an apocalyptic number.

1109785011 is a deficient number, since it is larger than the sum of its proper divisors (379006989).

1109785011 is a wasteful number, since it uses less digits than its factorization.

1109785011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2269665.

The product of its (nonzero) digits is 2520, while the sum is 33.

The square root of 1109785011 is about 33313.4358930447. The cubic root of 1109785011 is about 1035.3319544794.

The spelling of 1109785011 in words is "one billion, one hundred nine million, seven hundred eighty-five thousand, eleven".