1109038100 has 18 divisors (see below), whose sum is σ = 2406612894. Its totient is φ = 443615200.

The previous prime is 1109038093. The next prime is 1109038121. The reversal of 1109038100 is 18309011.

It can be written as a sum of positive squares in 3 ways, for example, as 108201604 + 1000836496 = 10402^2 + 31636^2 .

It is a super-2 number, since 2×1109038100² = 2459931014503220000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5545091 + ... + 5545290.

Almost surely, 2^1109038100 is an apocalyptic number.

1109038100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1109038100 is an abundant number, since it is smaller than the sum of its proper divisors (1297574794).

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

1109038100 is a wasteful number, since it uses less digits than its factorization.

1109038100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11090395 (or 11090388 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 1109038100 is about 33302.2236494802. The cubic root of 1109038100 is about 1035.0996348963.

The spelling of 1109038100 in words is "one billion, one hundred nine million, thirty-eight thousand, one hundred".