20320300343 has 24 divisors (see below), whose sum is σ = 23887323792. Its totient is φ = 17234012544.

The previous prime is 20320300339. The next prime is 20320300361. The reversal of 20320300343 is 34300302302.

It is not a de Polignac number, because 20320300343 - 2² = 20320300339 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20320300333) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5749805 + ... + 5753337.

It is an arithmetic number, because the mean of its divisors is an integer number (995305158).

Almost surely, 2^20320300343 is an apocalyptic number.

20320300343 is a deficient number, since it is larger than the sum of its proper divisors (3567023449).

20320300343 is a wasteful number, since it uses less digits than its factorization.

20320300343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4751 (or 4744 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 20.

Adding to 20320300343 its reverse (34300302302), we get a palindrome (54620602645).

The spelling of 20320300343 in words is "twenty billion, three hundred twenty million, three hundred thousand, three hundred forty-three".