1105109712 has 120 divisors (see below), whose sum is σ = 3562004160. Its totient is φ = 313297920.

The previous prime is 1105109683. The next prime is 1105109729. The reversal of 1105109712 is 2179015011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127864 + ... + 136232.

It is an arithmetic number, because the mean of its divisors is an integer number (29683368).

Almost surely, 2^1105109712 is an apocalyptic number.

1105109712 is a gapful number since it is divisible by the number (12) 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 1105109712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1781002080).

1105109712 is an abundant number, since it is smaller than the sum of its proper divisors (2456894448).

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

1105109712 is a wasteful number, since it uses less digits than its factorization.

1105109712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8521 (or 8512 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 27.

The square root of 1105109712 is about 33243.1904606041. The cubic root of 1105109712 is about 1033.8760269241.

The spelling of 1105109712 in words is "one billion, one hundred five million, one hundred nine thousand, seven hundred twelve".