23212322320 has 80 divisors (see below), whose sum is σ = 58993992000. Its totient is φ = 8423769600.

The previous prime is 23212322293. The next prime is 23212322327. The reversal of 23212322320 is 2322321232.

It is a tau number, because it is divible by the number of its divisors (80).

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 = 23212322291 and 23212322300.

It is not an unprimeable number, because it can be changed into a prime (23212322327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 412690 + ... + 465550.

It is an arithmetic number, because the mean of its divisors is an integer number (737424900).

Almost surely, 2^23212322320 is an apocalyptic number.

23212322320 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 23212322320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29496996000).

23212322320 is an abundant number, since it is smaller than the sum of its proper divisors (35781669680).

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

23212322320 is a wasteful number, since it uses less digits than its factorization.

23212322320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53384 (or 53378 counting only the distinct ones).

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

Adding to 23212322320 its reverse (2322321232), we get a palindrome (25534643552).

The spelling of 23212322320 in words is "twenty-three billion, two hundred twelve million, three hundred twenty-two thousand, three hundred twenty".