23121203443120 has 120 divisors (see below), whose sum is σ = 54578466531360. Its totient is φ = 9109213209600.

The previous prime is 23121203443069. The next prime is 23121203443153. The reversal of 23121203443120 is 2134430212132.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 415753876 + ... + 415809484.

It is an arithmetic number, because the mean of its divisors is an integer number (454820554428).

Almost surely, 2^{23121203443120} is an apocalyptic number.

23121203443120 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 23121203443120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27289233265680).

23121203443120 is an abundant number, since it is smaller than the sum of its proper divisors (31457263088240).

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

23121203443120 is a wasteful number, since it uses less digits than its factorization.

23121203443120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56795 (or 56718 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 23121203443120 its reverse (2134430212132), we get a palindrome (25255633655252).

The spelling of 23121203443120 in words is "twenty-three trillion, one hundred twenty-one billion, two hundred three million, four hundred forty-three thousand, one hundred twenty".