1108820113 has 4 divisors (see below), whose sum is σ = 1135864548. Its totient is φ = 1081775680.

The previous prime is 1108820101. The next prime is 1108820123. The reversal of 1108820113 is 3110288011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 249861249 + 858958864 = 15807^2 + 29308^2 .

It is a cyclic number.

It is not a de Polignac number, because 1108820113 - 2¹⁷ = 1108689041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1108820123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13522156 + ... + 13522237.

It is an arithmetic number, because the mean of its divisors is an integer number (283966137).

Almost surely, 2^1108820113 is an apocalyptic number.

It is an amenable number.

1108820113 is a deficient number, since it is larger than the sum of its proper divisors (27044435).

1108820113 is an equidigital number, since it uses as much as digits as its factorization.

1108820113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27044434.

The product of its (nonzero) digits is 384, while the sum is 25.

The square root of 1108820113 is about 33298.9506291114. The cubic root of 1108820113 is about 1035.0318124445.

The spelling of 1108820113 in words is "one billion, one hundred eight million, eight hundred twenty thousand, one hundred thirteen".