11121000100 has 36 divisors (see below), whose sum is σ = 27580081984. Its totient is φ = 3812914080.

The previous prime is 11121000061. The next prime is 11121000103. The reversal of 11121000100 is 100012111.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is not an unprimeable number, because it can be changed into a prime (11121000103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7942872 + ... + 7944271.

Almost surely, 2^11121000100 is an apocalyptic number.

11121000100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11121000100 is an abundant number, since it is smaller than the sum of its proper divisors (16459081884).

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

11121000100 is a wasteful number, since it uses less digits than its factorization.

11121000100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15887164 (or 15887157 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 11121000100 its reverse (100012111), we get a palindrome (11221012211).

The spelling of 11121000100 in words is "eleven billion, one hundred twenty-one million, one hundred", and thus it is an aban number.