23323031220 has 96 divisors (see below), whose sum is σ = 67004340480. Its totient is φ = 6058071040.

The previous prime is 23323031213. The next prime is 23323031233. The reversal of 23323031220 is 2213032332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1599121 + ... + 1613639.

It is an arithmetic number, because the mean of its divisors is an integer number (697961880).

Almost surely, 2^23323031220 is an apocalyptic number.

23323031220 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 23323031220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33502170240).

23323031220 is an abundant number, since it is smaller than the sum of its proper divisors (43681309260).

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

23323031220 is a wasteful number, since it uses less digits than its factorization.

23323031220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15225 (or 15223 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 23323031220 its reverse (2213032332), we get a palindrome (25536063552).

The spelling of 23323031220 in words is "twenty-three billion, three hundred twenty-three million, thirty-one thousand, two hundred twenty".