23133330220 has 288 divisors, whose sum is σ = 66718826496. Its totient is φ = 6622963200.

The previous prime is 23133330191. The next prime is 23133330223. The reversal of 23133330220 is 2203333132.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 23133330191 and 23133330200.

It is not an unprimeable number, because it can be changed into a prime (23133330223) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 53673405 + ... + 53673835.

It is an arithmetic number, because the mean of its divisors is an integer number (231662592).

Almost surely, 2^23133330220 is an apocalyptic number.

23133330220 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 23133330220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33359413248).

23133330220 is an abundant number, since it is smaller than the sum of its proper divisors (43585496276).

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

23133330220 is a wasteful number, since it uses less digits than its factorization.

23133330220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861 (or 852 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 22.

Adding to 23133330220 its reverse (2203333132), we get a palindrome (25336663352).

It can be divided in two parts, 23133 and 330220, that added together give a palindrome (353353).

The spelling of 23133330220 in words is "twenty-three billion, one hundred thirty-three million, three hundred thirty thousand, two hundred twenty".