23121130980 has 24 divisors (see below), whose sum is σ = 64739166912. Its totient is φ = 6165634912.

The previous prime is 23121130939. The next prime is 23121130987. The reversal of 23121130980 is 8903112132.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (23121130987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192676032 + ... + 192676151.

It is an arithmetic number, because the mean of its divisors is an integer number (2697465288).

Almost surely, 2^23121130980 is an apocalyptic number.

23121130980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23121130980 is an abundant number, since it is smaller than the sum of its proper divisors (41618035932).

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

23121130980 is a wasteful number, since it uses less digits than its factorization.

23121130980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385352195 (or 385352193 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The spelling of 23121130980 in words is "twenty-three billion, one hundred twenty-one million, one hundred thirty thousand, nine hundred eighty".