1108938333905 has 4 divisors (see below), whose sum is σ = 1330726000692. Its totient is φ = 887150667120.

The previous prime is 1108938333901. The next prime is 1108938333907. The reversal of 1108938333905 is 5093338398011.

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 283586070784 + 825352263121 = 532528^2 + 908489^2 .

It is not a de Polignac number, because 1108938333905 - 2² = 1108938333901 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1108938333901) 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, 110893833386 + ... + 110893833395.

It is an arithmetic number, because the mean of its divisors is an integer number (332681500173).

Almost surely, 2^{1108938333905} is an apocalyptic number.

It is an amenable number.

1108938333905 is a deficient number, since it is larger than the sum of its proper divisors (221787666787).

1108938333905 is an equidigital number, since it uses as much as digits as its factorization.

1108938333905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221787666786.

The product of its (nonzero) digits is 2099520, while the sum is 53.

The spelling of 1108938333905 in words is "one trillion, one hundred eight billion, nine hundred thirty-eight million, three hundred thirty-three thousand, nine hundred five".