1100109920 has 96 divisors (see below), whose sum is σ = 3198823488. Its totient is φ = 348162048.

The previous prime is 1100109911. The next prime is 1100109947. The reversal of 1100109920 is 299010011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23219 + ... + 52338.

It is an arithmetic number, because the mean of its divisors is an integer number (33321078).

Almost surely, 2^1100109920 is an apocalyptic number.

1100109920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100109920 is an abundant number, since it is smaller than the sum of its proper divisors (2098713568).

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

1100109920 is a wasteful number, since it uses less digits than its factorization.

1100109920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75592 (or 75584 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 23.

The square root of 1100109920 is about 33167.9049685083. The cubic root of 1100109920 is about 1032.3144986233.

Adding to 1100109920 its reverse (299010011), we get a palindrome (1399119931).

The spelling of 1100109920 in words is "one billion, one hundred million, one hundred nine thousand, nine hundred twenty".