11103343100 has 72 divisors (see below), whose sum is σ = 25107924240. Its totient is φ = 4256734720.

The previous prime is 11103343087. The next prime is 11103343151. The reversal of 11103343100 is 134330111.

It is a super-2 number, since 2×11103343100² (a number of 21 digits) 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 23 ways as a sum of consecutive naturals, for example, 383327 + ... + 411273.

It is an arithmetic number, because the mean of its divisors is an integer number (348721170).

Almost surely, 2^11103343100 is an apocalyptic number.

11103343100 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 11103343100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12553962120).

11103343100 is an abundant number, since it is smaller than the sum of its proper divisors (14004581140).

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

11103343100 is a wasteful number, since it uses less digits than its factorization.

11103343100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28127 (or 28120 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 11103343100 its reverse (134330111), we get a palindrome (11237673211).

The spelling of 11103343100 in words is "eleven billion, one hundred three million, three hundred forty-three thousand, one hundred".