11103130020 has 24 divisors (see below), whose sum is σ = 31088764224. Its totient is φ = 2960834656.

The previous prime is 11103129949. The next prime is 11103130021. The reversal of 11103130020 is 2003130111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 11103129978 and 11103130005.

It is not an unprimeable number, because it can be changed into a prime (11103130021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92526024 + ... + 92526143.

It is an arithmetic number, because the mean of its divisors is an integer number (1295365176).

Almost surely, 2^11103130020 is an apocalyptic number.

11103130020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11103130020 is an abundant number, since it is smaller than the sum of its proper divisors (19985634204).

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

11103130020 is a wasteful number, since it uses less digits than its factorization.

11103130020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185052179 (or 185052177 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 11103130020 its reverse (2003130111), we get a palindrome (13106260131).

Subtracting from 11103130020 its reverse (2003130111), we obtain a palindrome (9099999909).

The spelling of 11103130020 in words is "eleven billion, one hundred three million, one hundred thirty thousand, twenty".