20010123334336 has 56 divisors (see below), whose sum is σ = 40123917445680. Its totient is φ = 9900446932992.

The previous prime is 20010123334297. The next prime is 20010123334337. The reversal of 20010123334336 is 63343332101002.

It is a junction number, because it is equal to n+sod(n) for n = 20010123334298 and 20010123334307.

It is not an unprimeable number, because it can be changed into a prime (20010123334337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2219935 + ... + 6704353.

Almost surely, 2^{20010123334336} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20010123334336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20061958722840).

20010123334336 is an abundant number, since it is smaller than the sum of its proper divisors (20113794111344).

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

20010123334336 is a wasteful number, since it uses less digits than its factorization.

20010123334336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4485161 (or 4485151 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 31.

Adding to 20010123334336 its reverse (63343332101002), we get a palindrome (83353455435338).

The spelling of 20010123334336 in words is "twenty trillion, ten billion, one hundred twenty-three million, three hundred thirty-four thousand, three hundred thirty-six".