23320121000 has 128 divisors (see below), whose sum is σ = 60002242560. Its totient is φ = 8412768000.

The previous prime is 23320120961. The next prime is 23320121009. The reversal of 23320121000 is 12102332.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (23320121009) 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, 1388654 + ... + 1405346.

It is an arithmetic number, because the mean of its divisors is an integer number (468767520).

Almost surely, 2^23320121000 is an apocalyptic number.

23320121000 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 23320121000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30001121280).

23320121000 is an abundant number, since it is smaller than the sum of its proper divisors (36682121560).

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

23320121000 is a wasteful number, since it uses less digits than its factorization.

23320121000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16852 (or 16838 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 23320121000 its reverse (12102332), we get a palindrome (23332223332).

It can be divided in two parts, 23 and 320121000, that added together give a palindrome (320121023).

The spelling of 23320121000 in words is "twenty-three billion, three hundred twenty million, one hundred twenty-one thousand".