1109101986 has 12 divisors (see below), whose sum is σ = 2403054342. Its totient is φ = 369700656.

The previous prime is 1109101969. The next prime is 1109101993. The reversal of 1109101986 is 6891019011.

It can be written as a sum of positive squares in only one way, i.e., 1084450761 + 24651225 = 32931^2 + 4965^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1109101986.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30808371 + ... + 30808406.

Almost surely, 2^1109101986 is an apocalyptic number.

1109101986 is an abundant number, since it is smaller than the sum of its proper divisors (1293952356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1109101986 is a wasteful number, since it uses less digits than its factorization.

1109101986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61616785 (or 61616782 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 36.

The square root of 1109101986 is about 33303.1828208656. The cubic root of 1109101986 is about 1035.1195101093.

It can be divided in two parts, 110910 and 1986, that added together give a square (112896 = 336²).

The spelling of 1109101986 in words is "one billion, one hundred nine million, one hundred one thousand, nine hundred eighty-six".