1105110561 has 32 divisors (see below), whose sum is σ = 1537571200. Its totient is φ = 705438720.

The previous prime is 1105110541. The next prime is 1105110607. The reversal of 1105110561 is 1650115011.

It is a happy number.

It is not a de Polignac number, because 1105110561 - 2¹⁵ = 1105077793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1105110521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2915670 + ... + 2916048.

It is an arithmetic number, because the mean of its divisors is an integer number (48049100).

Almost surely, 2^1105110561 is an apocalyptic number.

It is an amenable number.

1105110561 is a deficient number, since it is larger than the sum of its proper divisors (432460639).

1105110561 is a wasteful number, since it uses less digits than its factorization.

1105110561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769.

The product of its (nonzero) digits is 150, while the sum is 21.

The square root of 1105110561 is about 33243.2032301341. The cubic root of 1105110561 is about 1033.8762916823.

Adding to 1105110561 its reverse (1650115011), we get a palindrome (2755225572).

It can be divided in two parts, 11051 and 10561, that added together give a palindrome (21612).

The spelling of 1105110561 in words is "one billion, one hundred five million, one hundred ten thousand, five hundred sixty-one".