2103442100 has 18 divisors (see below), whose sum is σ = 4564469574. Its totient is φ = 841376800.

The previous prime is 2103442043. The next prime is 2103442127. The reversal of 2103442100 is 12443012.

It can be written as a sum of positive squares in 3 ways, for example, as 733109776 + 1370332324 = 27076^2 + 37018^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10517111 + ... + 10517310.

It is an arithmetic number, because the mean of its divisors is an integer number (253581643).

Almost surely, 2^2103442100 is an apocalyptic number.

2103442100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2103442100 is an abundant number, since it is smaller than the sum of its proper divisors (2461027474).

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

2103442100 is a wasteful number, since it uses less digits than its factorization.

2103442100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21034435 (or 21034428 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2103442100 is about 45863.2979625321. The cubic root of 2103442100 is about 1281.2784468005.

Adding to 2103442100 its reverse (12443012), we get a palindrome (2115885112).

The spelling of 2103442100 in words is "two billion, one hundred three million, four hundred forty-two thousand, one hundred".