20300344443 has 16 divisors (see below), whose sum is σ = 30077308800. Its totient is φ = 13532337000.

The previous prime is 20300344423. The next prime is 20300344499. The reversal of 20300344443 is 34444300302.

It is not a de Polignac number, because 20300344443 - 2⁵ = 20300344411 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (20300344403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 347068 + ... + 401318.

It is an arithmetic number, because the mean of its divisors is an integer number (1879831800).

Almost surely, 2^20300344443 is an apocalyptic number.

20300344443 is a deficient number, since it is larger than the sum of its proper divisors (9776964357).

20300344443 is a wasteful number, since it uses less digits than its factorization.

20300344443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68119 (or 68113 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

Adding to 20300344443 its reverse (34444300302), we get a palindrome (54744644745).

The spelling of 20300344443 in words is "twenty billion, three hundred million, three hundred forty-four thousand, four hundred forty-three".