1109368813 has 32 divisors (see below), whose sum is σ = 1402652160. Its totient is φ = 855429120.

The previous prime is 1109368801. The next prime is 1109368829. The reversal of 1109368813 is 3188639011.

It is not a de Polignac number, because 1109368813 - 2²¹ = 1107271661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1109368853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 353893 + ... + 357013.

It is an arithmetic number, because the mean of its divisors is an integer number (43832880).

Almost surely, 2^1109368813 is an apocalyptic number.

It is an amenable number.

1109368813 is a deficient number, since it is larger than the sum of its proper divisors (293283347).

1109368813 is a wasteful number, since it uses less digits than its factorization.

1109368813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3277.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 1109368813 is about 33307.1886084671. The cubic root of 1109368813 is about 1035.2025129022.

The spelling of 1109368813 in words is "one billion, one hundred nine million, three hundred sixty-eight thousand, eight hundred thirteen".