23230021220 has 96 divisors (see below), whose sum is σ = 56831362560. Its totient is φ = 7811159040.

The previous prime is 23230021201. The next prime is 23230021259. The reversal of 23230021220 is 2212003232.

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, 3062072 + ... + 3069648.

It is an arithmetic number, because the mean of its divisors is an integer number (591993360).

Almost surely, 2^23230021220 is an apocalyptic number.

23230021220 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 23230021220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28415681280).

23230021220 is an abundant number, since it is smaller than the sum of its proper divisors (33601341340).

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

23230021220 is a wasteful number, since it uses less digits than its factorization.

23230021220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8013 (or 8011 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 23230021220 its reverse (2212003232), we get a palindrome (25442024452).

The spelling of 23230021220 in words is "twenty-three billion, two hundred thirty million, twenty-one thousand, two hundred twenty".