1109711380 has 48 divisors (see below), whose sum is σ = 2470668480. Its totient is φ = 417233408.

The previous prime is 1109711377. The next prime is 1109711381. The reversal of 1109711380 is 831179011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1109711381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 344859 + ... + 348061.

It is an arithmetic number, because the mean of its divisors is an integer number (51472260).

Almost surely, 2^1109711380 is an apocalyptic number.

1109711380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1109711380 is an abundant number, since it is smaller than the sum of its proper divisors (1360957100).

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

1109711380 is a wasteful number, since it uses less digits than its factorization.

1109711380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4248 (or 4246 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 31.

The square root of 1109711380 is about 33312.3307500391. The cubic root of 1109711380 is about 1035.3090568875.

The spelling of 1109711380 in words is "one billion, one hundred nine million, seven hundred eleven thousand, three hundred eighty".