23230021200 has 120 divisors (see below), whose sum is σ = 74906890176. Its totient is φ = 6153600000.

The previous prime is 23230021163. The next prime is 23230021201. The reversal of 23230021200 is 212003232.

It is a tau number, because it is divible by the number of its divisors (120).

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 23230021200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23230021201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 117100 + ... + 245300.

Almost surely, 2^23230021200 is an apocalyptic number.

23230021200 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 23230021200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37453445088).

23230021200 is an abundant number, since it is smaller than the sum of its proper divisors (51676868976).

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

23230021200 is a wasteful number, since it uses less digits than its factorization.

23230021200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128373 (or 128362 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 23230021200 its reverse (212003232), we get a palindrome (23442024432).

The spelling of 23230021200 in words is "twenty-three billion, two hundred thirty million, twenty-one thousand, two hundred".