1109231376 has 80 divisors (see below), whose sum is σ = 3146161728. Its totient is φ = 333964800.

The previous prime is 1109231309. The next prime is 1109231377. The reversal of 1109231376 is 6731329011.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1109231377) 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, 76206 + ... + 89586.

Almost surely, 2^1109231376 is an apocalyptic number.

1109231376 is a gapful number since it is divisible by the number (16) 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 1109231376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1573080864).

1109231376 is an abundant number, since it is smaller than the sum of its proper divisors (2036930352).

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

1109231376 is a wasteful number, since it uses less digits than its factorization.

1109231376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13560 (or 13554 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 1109231376 is about 33305.1253713299. The cubic root of 1109231376 is about 1035.1597615641.

The spelling of 1109231376 in words is "one billion, one hundred nine million, two hundred thirty-one thousand, three hundred seventy-six".