23221411320 has 128 divisors (see below), whose sum is σ = 70601207040. Its totient is φ = 6109301760.

The previous prime is 23221411277. The next prime is 23221411327. The reversal of 23221411320 is 2311412232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23221411327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10865292 + ... + 10867428.

It is an arithmetic number, because the mean of its divisors is an integer number (551571930).

Almost surely, 2^23221411320 is an apocalyptic number.

23221411320 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 23221411320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35300603520).

23221411320 is an abundant number, since it is smaller than the sum of its proper divisors (47379795720).

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

23221411320 is a wasteful number, since it uses less digits than its factorization.

23221411320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3325 (or 3321 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 23221411320 its reverse (2311412232), we get a palindrome (25532823552).

The spelling of 23221411320 in words is "twenty-three billion, two hundred twenty-one million, four hundred eleven thousand, three hundred twenty".