20320300344 has 32 divisors (see below), whose sum is σ = 51022602000. Its totient is φ = 6743853312.

The previous prime is 20320300339. The next prime is 20320300361. The reversal of 20320300344 is 44300302302.

It is a self number, because there is not a number n which added to its sum of digits gives 20320300344.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1843149 + ... + 1854140.

Almost surely, 2^20320300344 is an apocalyptic number.

20320300344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20320300344 is an abundant number, since it is smaller than the sum of its proper divisors (30702301656).

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

20320300344 is a wasteful number, since it uses less digits than its factorization.

20320300344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3697527 (or 3697523 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 21.

Adding to 20320300344 its reverse (44300302302), we get a palindrome (64620602646).

The spelling of 20320300344 in words is "twenty billion, three hundred twenty million, three hundred thousand, three hundred forty-four".