2113232100 has 72 divisors (see below), whose sum is σ = 6987761088. Its totient is φ = 483024000.

The previous prime is 2113232083. The next prime is 2113232113. The reversal of 2113232100 is 12323112.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2113232100.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 501051 + ... + 505250.

Almost surely, 2^2113232100 is an apocalyptic number.

2113232100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2113232100 is an abundant number, since it is smaller than the sum of its proper divisors (4874528988).

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

2113232100 is a wasteful number, since it uses less digits than its factorization.

2113232100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006325 (or 1006318 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2113232100 is about 45969.9042853039. The cubic root of 2113232100 is about 1283.2631786391.

Adding to 2113232100 its reverse (12323112), we get a palindrome (2125555212).

The spelling of 2113232100 in words is "two billion, one hundred thirteen million, two hundred thirty-two thousand, one hundred".