1109368812 has 24 divisors (see below), whose sum is σ = 2589723136. Its totient is φ = 369618768.

The previous prime is 1109368801. The next prime is 1109368829. The reversal of 1109368812 is 2188639011.

It is a super-2 number, since 2×1109368812² = 2461398322076582688, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7233 + ... + 47655.

Almost surely, 2^1109368812 is an apocalyptic number.

1109368812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1109368812 is an abundant number, since it is smaller than the sum of its proper divisors (1480354324).

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

1109368812 is a wasteful number, since it uses less digits than its factorization.

1109368812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42717 (or 42715 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 1109368812 is about 33307.1885934553. The cubic root of 1109368812 is about 1035.2025125912.

The spelling of 1109368812 in words is "one billion, one hundred nine million, three hundred sixty-eight thousand, eight hundred twelve".