2103634100 has 18 divisors (see below), whose sum is σ = 4564886214. Its totient is φ = 841453600.

The previous prime is 2103634097. The next prime is 2103634123. The reversal of 2103634100 is 14363012.

It can be written as a sum of positive squares in 3 ways, for example, as 6360484 + 2097273616 = 2522^2 + 45796^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 10518071 + ... + 10518270.

Almost surely, 2^2103634100 is an apocalyptic number.

2103634100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2103634100 is an abundant number, since it is smaller than the sum of its proper divisors (2461252114).

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

2103634100 is a wasteful number, since it uses less digits than its factorization.

2103634100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21036355 (or 21036348 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2103634100 is about 45865.3910917589. The cubic root of 2103634100 is about 1281.3174302009.

Adding to 2103634100 its reverse (14363012), we get a palindrome (2117997112).

The spelling of 2103634100 in words is "two billion, one hundred three million, six hundred thirty-four thousand, one hundred".