2100133100 has 36 divisors (see below), whose sum is σ = 4907852544. Its totient is φ = 775433280.

The previous prime is 2100133093. The next prime is 2100133117. The reversal of 2100133100 is 13310012.

It is a super-2 number, since 2×2100133100² = 8821118075431220000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 806444 + ... + 809043.

Almost surely, 2^2100133100 is an apocalyptic number.

2100133100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2100133100 is an abundant number, since it is smaller than the sum of its proper divisors (2807719444).

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

2100133100 is a wasteful number, since it uses less digits than its factorization.

2100133100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1615514 (or 1615507 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 2100133100 is about 45827.2091666076. The cubic root of 2100133100 is about 1280.6062191916.

Adding to 2100133100 its reverse (13310012), we get a palindrome (2113443112).

The spelling of 2100133100 in words is "two billion, one hundred million, one hundred thirty-three thousand, one hundred".