23121302300020 has 12 divisors (see below), whose sum is σ = 48554734830084. Its totient is φ = 9248520920000.

The previous prime is 23121302300017. The next prime is 23121302300027. The reversal of 23121302300020 is 2000320312132.

It can be written as a sum of positive squares in 2 ways, for example, as 12768944569956 + 10352357730064 = 3573366^2 + 3217508^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23121302300027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578032557481 + ... + 578032557520.

It is an arithmetic number, because the mean of its divisors is an integer number (4046227902507).

Almost surely, 2^{23121302300020} is an apocalyptic number.

23121302300020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23121302300020 is an abundant number, since it is smaller than the sum of its proper divisors (25433432530064).

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

23121302300020 is a wasteful number, since it uses less digits than its factorization.

23121302300020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156065115010 (or 1156065115008 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 23121302300020 its reverse (2000320312132), we get a palindrome (25121622612152).

The spelling of 23121302300020 in words is "twenty-three trillion, one hundred twenty-one billion, three hundred two million, three hundred thousand, twenty".