1131101100 has 108 divisors (see below), whose sum is σ = 3641301664. Its totient is φ = 293466240.

The previous prime is 1131101093. The next prime is 1131101113. The reversal of 1131101100 is 11011311.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 16317 + ... + 50283.

Almost surely, 2^1131101100 is an apocalyptic number.

1131101100 is a gapful number since it is divisible by the number (10) 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 1131101100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1820650832).

1131101100 is an abundant number, since it is smaller than the sum of its proper divisors (2510200564).

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

1131101100 is a wasteful number, since it uses less digits than its factorization.

1131101100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34024 (or 34014 counting only the distinct ones).

The product of its (nonzero) digits is 3, while the sum is 9.

The square root of 1131101100 is about 33631.8465148734. The cubic root of 1131101100 is about 1041.9186414079.

Adding to 1131101100 its reverse (11011311), we get a palindrome (1142112411).

The spelling of 1131101100 in words is "one billion, one hundred thirty-one million, one hundred one thousand, one hundred".