2133100100 has 18 divisors (see below), whose sum is σ = 4628827434. Its totient is φ = 853240000.

The previous prime is 2133100087. The next prime is 2133100127. The reversal of 2133100100 is 10013312.

It can be written as a sum of positive squares in 3 ways, for example, as 381342784 + 1751757316 = 19528^2 + 41854^2 .

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, 10665401 + ... + 10665600.

Almost surely, 2^2133100100 is an apocalyptic number.

2133100100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2133100100 is an abundant number, since it is smaller than the sum of its proper divisors (2495727334).

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

2133100100 is a wasteful number, since it uses less digits than its factorization.

2133100100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21331015 (or 21331008 counting only the distinct ones).

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

The square root of 2133100100 is about 46185.4966412617. The cubic root of 2133100100 is about 1287.2722643670.

Adding to 2133100100 its reverse (10013312), we get a palindrome (2143113412).

The spelling of 2133100100 in words is "two billion, one hundred thirty-three million, one hundred thousand, one hundred".