1109110020 has 48 divisors (see below), whose sum is σ = 3107485248. Its totient is φ = 295574400.

The previous prime is 1109110019. The next prime is 1109110031. The reversal of 1109110020 is 200119011.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107070 + ... + 116970.

It is an arithmetic number, because the mean of its divisors is an integer number (64739276).

Almost surely, 2^1109110020 is an apocalyptic number.

1109110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1109110020 is an abundant number, since it is smaller than the sum of its proper divisors (1998375228).

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

1109110020 is a wasteful number, since it uses less digits than its factorization.

1109110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11780 (or 11778 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 15.

The square root of 1109110020 is about 33303.3034397490. The cubic root of 1109110020 is about 1035.1220094677.

Adding to 1109110020 its reverse (200119011), we get a palindrome (1309229031).

The spelling of 1109110020 in words is "one billion, one hundred nine million, one hundred ten thousand, twenty".