20112301030120 has 128 divisors (see below), whose sum is σ = 51310449187200. Its totient is φ = 7033606493184.

The previous prime is 20112301030117. The next prime is 20112301030121. The reversal of 20112301030120 is 2103010321102.

It is a junction number, because it is equal to n+sod(n) for n = 20112301030094 and 20112301030103.

It is not an unprimeable number, because it can be changed into a prime (20112301030121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42873154 + ... + 43339726.

It is an arithmetic number, because the mean of its divisors is an integer number (400862884275).

Almost surely, 2^{20112301030120} is an apocalyptic number.

20112301030120 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 20112301030120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25655224593600).

20112301030120 is an abundant number, since it is smaller than the sum of its proper divisors (31198148157080).

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

20112301030120 is a wasteful number, since it uses less digits than its factorization.

20112301030120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470979 (or 470975 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20112301030120 its reverse (2103010321102), we get a palindrome (22215311351222).

The spelling of 20112301030120 in words is "twenty trillion, one hundred twelve billion, three hundred one million, thirty thousand, one hundred twenty".