23203310220 has 120 divisors (see below), whose sum is σ = 73095422400. Its totient is φ = 6161557248.

The previous prime is 23203310209. The next prime is 23203310227. The reversal of 23203310220 is 2201330232.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 23203310193 and 23203310202.

It is not an unprimeable number, because it can be changed into a prime (23203310227) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 357216 + ... + 417144.

It is an arithmetic number, because the mean of its divisors is an integer number (609128520).

Almost surely, 2^23203310220 is an apocalyptic number.

23203310220 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 23203310220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36547711200).

23203310220 is an abundant number, since it is smaller than the sum of its proper divisors (49892112180).

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

23203310220 is a wasteful number, since it uses less digits than its factorization.

23203310220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60189 (or 60178 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 23203310220 its reverse (2201330232), we get a palindrome (25404640452).

The spelling of 23203310220 in words is "twenty-three billion, two hundred three million, three hundred ten thousand, two hundred twenty".