23223100 has 54 divisors (see below), whose sum is σ = 52800440. Its totient is φ = 8865120.

The previous prime is 23223059. The next prime is 23223107. The reversal of 23223100 is 132232.

It is a happy number.

It is a super-2 number, since 2×23223100² = 1078624747220000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23223107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 52681 + ... + 53119.

Almost surely, 2^23223100 is an apocalyptic number.

23223100 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 23223100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26400220).

23223100 is an abundant number, since it is smaller than the sum of its proper divisors (29577340).

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

23223100 is a wasteful number, since it uses less digits than its factorization.

23223100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499 (or 469 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 23223100 is about 4819.0351731441. The cubic root of 23223100 is about 285.3032577892.

Adding to 23223100 its reverse (132232), we get a palindrome (23355332).

It can be divided in two parts, 232 and 23100, that added together give a palindrome (23332).

The spelling of 23223100 in words is "twenty-three million, two hundred twenty-three thousand, one hundred".