1105511120 has 80 divisors (see below), whose sum is σ = 2942156928. Its totient is φ = 378432000.

The previous prime is 1105511101. The next prime is 1105511131. The reversal of 1105511120 is 211155011.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

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, 489995 + ... + 492245.

Almost surely, 2^1105511120 is an apocalyptic number.

1105511120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1105511120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1471078464).

1105511120 is an abundant number, since it is smaller than the sum of its proper divisors (1836645808).

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

1105511120 is a wasteful number, since it uses less digits than its factorization.

1105511120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3148 (or 3142 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 17.

The square root of 1105511120 is about 33249.2273594440. The cubic root of 1105511120 is about 1034.0011897221.

Adding to 1105511120 its reverse (211155011), we get a palindrome (1316666131).

The spelling of 1105511120 in words is "one billion, one hundred five million, five hundred eleven thousand, one hundred twenty".