20313303344 has 80 divisors (see below), whose sum is σ = 41908389120. Its totient is φ = 9522965760.

The previous prime is 20313303301. The next prime is 20313303379. The reversal of 20313303344 is 44330331302.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2202647 + ... + 2211849.

It is an arithmetic number, because the mean of its divisors is an integer number (523854864).

Almost surely, 2^20313303344 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 20313303344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20954194560).

20313303344 is an abundant number, since it is smaller than the sum of its proper divisors (21595085776).

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

20313303344 is a wasteful number, since it uses less digits than its factorization.

20313303344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9378 (or 9372 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 26.

Adding to 20313303344 its reverse (44330331302), we get a palindrome (64643634646).

The spelling of 20313303344 in words is "twenty billion, three hundred thirteen million, three hundred three thousand, three hundred forty-four".