20123100102300 has 288 divisors, whose sum is σ = 66010132581120. Its totient is φ = 4692067430400.

The previous prime is 20123100102263. The next prime is 20123100102331. The reversal of 20123100102300 is 320100132102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20123100102300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 851471284 + ... + 851494916.

It is an arithmetic number, because the mean of its divisors is an integer number (229201849240).

Almost surely, 2^{20123100102300} is an apocalyptic number.

20123100102300 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 20123100102300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33005066290560).

20123100102300 is an abundant number, since it is smaller than the sum of its proper divisors (45887032478820).

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

20123100102300 is a wasteful number, since it uses less digits than its factorization.

20123100102300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35173 (or 35166 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20123100102300 its reverse (320100132102), we get a palindrome (20443200234402).

The spelling of 20123100102300 in words is "twenty trillion, one hundred twenty-three billion, one hundred million, one hundred two thousand, three hundred".