20113041312 has 480 divisors, whose sum is σ = 73889190144. Its totient is φ = 5225472000.

The previous prime is 20113041301. The next prime is 20113041313. The reversal of 20113041312 is 21314031102.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20113041313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 16746312 + ... + 16747512.

Almost surely, 2^20113041312 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 20113041312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36944595072).

20113041312 is an abundant number, since it is smaller than the sum of its proper divisors (53776148832).

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

20113041312 is a wasteful number, since it uses less digits than its factorization.

20113041312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314 (or 1297 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 20113041312 its reverse (21314031102), we get a palindrome (41427072414).

The spelling of 20113041312 in words is "twenty billion, one hundred thirteen million, forty-one thousand, three hundred twelve".