20113223210000 has 50 divisors (see below), whose sum is σ = 48696124737942. Its totient is φ = 8045289280000.

The previous prime is 20113223209993. The next prime is 20113223210009. The reversal of 20113223210000 is 1232231102.

It can be written as a sum of positive squares in 5 ways, for example, as 9814335590656 + 10298887619344 = 3132784^2 + 3209188^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is not an unprimeable number, because it can be changed into a prime (20113223210009) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1005651161 + ... + 1005671160.

Almost surely, 2^{20113223210000} is an apocalyptic number.

20113223210000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20113223210000 is an abundant number, since it is smaller than the sum of its proper divisors (28582901527942).

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

20113223210000 is an equidigital number, since it uses as much as digits as its factorization.

20113223210000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011322349 (or 2011322328 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20113223210000 its reverse (1232231102), we get a palindrome (20114455441102).

The spelling of 20113223210000 in words is "twenty trillion, one hundred thirteen billion, two hundred twenty-three million, two hundred ten thousand".