20045302112 has 96 divisors (see below), whose sum is σ = 43825380480. Its totient is φ = 8949099520.

The previous prime is 20045302111. The next prime is 20045302133. The reversal of 20045302112 is 21120354002.

It is a super-2 number, since 2×20045302112² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20045302111) 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, 5227748 + ... + 5231580.

It is an arithmetic number, because the mean of its divisors is an integer number (456514380).

Almost surely, 2^20045302112 is an apocalyptic number.

20045302112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20045302112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21912690240).

20045302112 is an abundant number, since it is smaller than the sum of its proper divisors (23780078368).

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

20045302112 is a wasteful number, since it uses less digits than its factorization.

20045302112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4116 (or 4108 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 20045302112 its reverse (21120354002), we get a palindrome (41165656114).

The spelling of 20045302112 in words is "twenty billion, forty-five million, three hundred two thousand, one hundred twelve".