20123030100000 has 576 divisors, whose sum is σ = 67314971566080. Its totient is φ = 5262192000000.

The previous prime is 20123030099947. The next prime is 20123030100073. The reversal of 20123030100000 is 103032102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 3578697189 + ... + 3578702811.

It is an arithmetic number, because the mean of its divisors is an integer number (116866270080).

Almost surely, 2^{20123030100000} is an apocalyptic number.

20123030100000 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 20123030100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33657485783040).

20123030100000 is an abundant number, since it is smaller than the sum of its proper divisors (47191941466080).

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

20123030100000 is an equidigital number, since it uses as much as digits as its factorization.

20123030100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5891 (or 5863 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 20123030100000 its reverse (103032102), we get a palindrome (20123133132102).

The spelling of 20123030100000 in words is "twenty trillion, one hundred twenty-three billion, thirty million, one hundred thousand".