20320103112 has 64 divisors (see below), whose sum is σ = 54441694080. Its totient is φ = 6303762432.

The previous prime is 20320103101. The next prime is 20320103117. The reversal of 20320103112 is 21130102302.

It is a junction number, because it is equal to n+sod(n) for n = 20320103091 and 20320103100.

It is not an unprimeable number, because it can be changed into a prime (20320103117) 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, 477033 + ... + 517880.

It is an arithmetic number, because the mean of its divisors is an integer number (850651470).

Almost surely, 2^20320103112 is an apocalyptic number.

It is an amenable number.

20320103112 is an abundant number, since it is smaller than the sum of its proper divisors (34121590968).

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

20320103112 is a wasteful number, since it uses less digits than its factorization.

20320103112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994982 (or 994978 counting only the distinct ones).

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

Adding to 20320103112 its reverse (21130102302), we get a palindrome (41450205414).

The spelling of 20320103112 in words is "twenty billion, three hundred twenty million, one hundred three thousand, one hundred twelve".