2103110020 has 24 divisors (see below), whose sum is σ = 4818034368. Its totient is φ = 764767200.

The previous prime is 2103109997. The next prime is 2103110027. The reversal of 2103110020 is 200113012.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 2103109979 and 2103110006.

It is not an unprimeable number, because it can be changed into a prime (2103110027) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4779576 + ... + 4780015.

It is an arithmetic number, because the mean of its divisors is an integer number (200751432).

Almost surely, 2^2103110020 is an apocalyptic number.

2103110020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2103110020 is an abundant number, since it is smaller than the sum of its proper divisors (2714924348).

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

2103110020 is a wasteful number, since it uses less digits than its factorization.

2103110020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9559611 (or 9559609 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 2103110020 is about 45859.6774955952. The cubic root of 2103110020 is about 1281.2110161607.

Adding to 2103110020 its reverse (200113012), we get a palindrome (2303223032).

The spelling of 2103110020 in words is "two billion, one hundred three million, one hundred ten thousand, twenty".