2103021100 has 36 divisors (see below), whose sum is σ = 4761976464. Its totient is φ = 804633280.

The previous prime is 2103021073. The next prime is 2103021113. The reversal of 2103021100 is 11203012.

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

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 11 ways as a sum of consecutive naturals, for example, 454879 + ... + 459478.

It is an arithmetic number, because the mean of its divisors is an integer number (132277124).

Almost surely, 2^2103021100 is an apocalyptic number.

2103021100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2103021100 is an abundant number, since it is smaller than the sum of its proper divisors (2658955364).

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

2103021100 is a wasteful number, since it uses less digits than its factorization.

2103021100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914394 (or 914387 counting only the distinct ones).

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

The square root of 2103021100 is about 45858.7080062228. The cubic root of 2103021100 is about 1281.1929592691.

Adding to 2103021100 its reverse (11203012), we get a palindrome (2114224112).

The spelling of 2103021100 in words is "two billion, one hundred three million, twenty-one thousand, one hundred".