23232321220 has 48 divisors (see below), whose sum is σ = 50008609728. Its totient is φ = 9061153920.

The previous prime is 23232321197. The next prime is 23232321257. The reversal of 23232321220 is 2212323232.

It is a junction number, because it is equal to n+sod(n) for n = 23232321191 and 23232321200.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 481810 + ... + 527830.

It is an arithmetic number, because the mean of its divisors is an integer number (1041846036).

Almost surely, 2^23232321220 is an apocalyptic number.

23232321220 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 23232321220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25004304864).

23232321220 is an abundant number, since it is smaller than the sum of its proper divisors (26776288508).

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

23232321220 is a wasteful number, since it uses less digits than its factorization.

23232321220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46660 (or 46658 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 23232321220 its reverse (2212323232), we get a palindrome (25444644452).

It can be divided in two parts, 232323212 and 20, that added together give a palindrome (232323232).

The spelling of 23232321220 in words is "twenty-three billion, two hundred thirty-two million, three hundred twenty-one thousand, two hundred twenty".