23130100 has 72 divisors (see below), whose sum is σ = 57996288. Its totient is φ = 7843200.

The previous prime is 23130089. The next prime is 23130113. The reversal of 23130100 is 103132.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

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, 121005 + ... + 121195.

It is an arithmetic number, because the mean of its divisors is an integer number (805504).

Almost surely, 2^23130100 is an apocalyptic number.

23130100 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 23130100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28998144).

23130100 is an abundant number, since it is smaller than the sum of its proper divisors (34866188).

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

23130100 is a wasteful number, since it uses less digits than its factorization.

23130100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385 (or 378 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 23130100 is about 4809.3762589342. The cubic root of 23130100 is about 284.9219032964.

Adding to 23130100 its reverse (103132), we get a palindrome (23233232).

The spelling of 23130100 in words is "twenty-three million, one hundred thirty thousand, one hundred".