20344202112 has 128 divisors (see below), whose sum is σ = 58535033760. Its totient is φ = 6223306752.

The previous prime is 20344202093. The next prime is 20344202113. The reversal of 20344202112 is 21120244302.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20344202113) 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 15 ways as a sum of consecutive naturals, for example, 851838 + ... + 875394.

Almost surely, 2^20344202112 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 20344202112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29267516880).

20344202112 is an abundant number, since it is smaller than the sum of its proper divisors (38190831648).

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

20344202112 is a wasteful number, since it uses less digits than its factorization.

20344202112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23760 (or 23748 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20344202112 its reverse (21120244302), we get a palindrome (41464446414).

The spelling of 20344202112 in words is "twenty billion, three hundred forty-four million, two hundred two thousand, one hundred twelve".