1105111172 has 12 divisors (see below), whose sum is σ = 2109757776. Its totient is φ = 502323240.

The previous prime is 1105111169. The next prime is 1105111187. The reversal of 1105111172 is 2711115011.

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 3 ways as a sum of consecutive naturals, for example, 12558038 + ... + 12558125.

It is an arithmetic number, because the mean of its divisors is an integer number (175813148).

Almost surely, 2^1105111172 is an apocalyptic number.

It is an amenable number.

1105111172 is a deficient number, since it is larger than the sum of its proper divisors (1004646604).

1105111172 is a wasteful number, since it uses less digits than its factorization.

1105111172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25116178 (or 25116176 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 20.

The square root of 1105111172 is about 33243.2124199813. The cubic root of 1105111172 is about 1033.8764822208.

Adding to 1105111172 its reverse (2711115011), we get a palindrome (3816226183).

The spelling of 1105111172 in words is "one billion, one hundred five million, one hundred eleven thousand, one hundred seventy-two".