2113023500 has 144 divisors (see below), whose sum is σ = 5605279680. Its totient is φ = 681523200.

The previous prime is 2113023461. The next prime is 2113023511. The reversal of 2113023500 is 53203112.

It is a Harshad number since it is a multiple of its sum of digits (17).

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 47 ways as a sum of consecutive naturals, for example, 1010456 + ... + 1012544.

Almost surely, 2^2113023500 is an apocalyptic number.

2113023500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2113023500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2802639840).

2113023500 is an abundant number, since it is smaller than the sum of its proper divisors (3492256180).

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

2113023500 is a wasteful number, since it uses less digits than its factorization.

2113023500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2149 (or 2120 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 2113023500 is about 45967.6353535833. The cubic root of 2113023500 is about 1283.2209530348.

Adding to 2113023500 its reverse (53203112), we get a palindrome (2166226612).

The spelling of 2113023500 in words is "two billion, one hundred thirteen million, twenty-three thousand, five hundred".