20103320112 has 80 divisors (see below), whose sum is σ = 53382794592. Its totient is φ = 6514421760.

The previous prime is 20103320099. The next prime is 20103320117. The reversal of 20103320112 is 21102330102.

It is a junction number, because it is equal to n+sod(n) for n = 20103320091 and 20103320100.

It is not an unprimeable number, because it can be changed into a prime (20103320117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2412978 + ... + 2421294.

Almost surely, 2^20103320112 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 20103320112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26691397296).

20103320112 is an abundant number, since it is smaller than the sum of its proper divisors (33279474480).

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

20103320112 is a wasteful number, since it uses less digits than its factorization.

20103320112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9726 (or 9720 counting only the distinct ones).

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

Adding to 20103320112 its reverse (21102330102), we get a palindrome (41205650214).

The spelling of 20103320112 in words is "twenty billion, one hundred three million, three hundred twenty thousand, one hundred twelve".