23121203033220 has 48 divisors (see below), whose sum is σ = 68547566642688. Its totient is φ = 5802968604160.

The previous prime is 23121203033183. The next prime is 23121203033251. The reversal of 23121203033220 is 2233030212132.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11333922036 + ... + 11333924075.

It is an arithmetic number, because the mean of its divisors is an integer number (1428074305056).

Almost surely, 2^{23121203033220} is an apocalyptic number.

23121203033220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23121203033220 is an abundant number, since it is smaller than the sum of its proper divisors (45426363609468).

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

23121203033220 is a wasteful number, since it uses less digits than its factorization.

23121203033220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22667846140 (or 22667846138 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 23121203033220 its reverse (2233030212132), we get a palindrome (25354233245352).

The spelling of 23121203033220 in words is "twenty-three trillion, one hundred twenty-one billion, two hundred three million, thirty-three thousand, two hundred twenty".