1101001100 has 36 divisors (see below), whose sum is σ = 2408012544. Its totient is φ = 436927680.

The previous prime is 1101001087. The next prime is 1101001123. The reversal of 1101001100 is 11001011.

It is a Harshad number since it is a multiple of its sum of digits (5).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30647 + ... + 56046.

Almost surely, 2^1101001100 is an apocalyptic number.

1101001100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1101001100 is an abundant number, since it is smaller than the sum of its proper divisors (1307011444).

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

1101001100 is a wasteful number, since it uses less digits than its factorization.

1101001100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86834 (or 86827 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 5.

The square root of 1101001100 is about 33181.3366216613. The cubic root of 1101001100 is about 1032.5931767537.

Adding to 1101001100 its reverse (11001011), we get a palindrome (1112002111).

The spelling of 1101001100 in words is "one billion, one hundred one million, one thousand, one hundred".