20305314112 has 56 divisors (see below), whose sum is σ = 42117264000. Its totient is φ = 9694603776.

The previous prime is 20305314109. The next prime is 20305314151. The reversal of 20305314112 is 21141350302.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 870214 + ... + 893242.

It is an arithmetic number, because the mean of its divisors is an integer number (752094000).

Almost surely, 2^20305314112 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 20305314112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21058632000).

20305314112 is an abundant number, since it is smaller than the sum of its proper divisors (21811949888).

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

20305314112 is a wasteful number, since it uses less digits than its factorization.

20305314112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23663 (or 23653 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 20305314112 its reverse (21141350302), we get a palindrome (41446664414).

The spelling of 20305314112 in words is "twenty billion, three hundred five million, three hundred fourteen thousand, one hundred twelve".