20120303112 has 384 divisors, whose sum is σ = 64889164800. Its totient is φ = 5086209024.

The previous prime is 20120303107. The next prime is 20120303171. The reversal of 20120303112 is 21130302102.

It is a junction number, because it is equal to n+sod(n) for n = 20120303091 and 20120303100.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 112403839 + ... + 112404017.

It is an arithmetic number, because the mean of its divisors is an integer number (168982200).

Almost surely, 2^20120303112 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 20120303112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32444582400).

20120303112 is an abundant number, since it is smaller than the sum of its proper divisors (44768861688).

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

20120303112 is a wasteful number, since it uses less digits than its factorization.

20120303112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 348 counting only the distinct ones).

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

Adding to 20120303112 its reverse (21130302102), we get a palindrome (41250605214).

The spelling of 20120303112 in words is "twenty billion, one hundred twenty million, three hundred three thousand, one hundred twelve".