23121021332100 has 36 divisors (see below), whose sum is σ = 66896821721744. Its totient is φ = 6165605688480.

The previous prime is 23121021332063. The next prime is 23121021332107. The reversal of 23121021332100 is 123312012132.

It is not an unprimeable number, because it can be changed into a prime (23121021332107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38535035254 + ... + 38535035853.

Almost surely, 2^{23121021332100} is an apocalyptic number.

23121021332100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23121021332100 is an abundant number, since it is smaller than the sum of its proper divisors (43775800389644).

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

23121021332100 is a wasteful number, since it uses less digits than its factorization.

23121021332100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77070071124 (or 77070071117 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 23121021332100 its reverse (123312012132), we get a palindrome (23244333344232).

The spelling of 23121021332100 in words is "twenty-three trillion, one hundred twenty-one billion, twenty-one million, three hundred thirty-two thousand, one hundred".