20443110320 has 20 divisors (see below), whose sum is σ = 47530231680. Its totient is φ = 8177244096.

The previous prime is 20443110307. The next prime is 20443110383. The reversal of 20443110320 is 2301134402.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 20443110292 and 20443110301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127769360 + ... + 127769519.

It is an arithmetic number, because the mean of its divisors is an integer number (2376511584).

Almost surely, 2^20443110320 is an apocalyptic number.

20443110320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20443110320 is an abundant number, since it is smaller than the sum of its proper divisors (27087121360).

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

20443110320 is a wasteful number, since it uses less digits than its factorization.

20443110320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255538892 (or 255538886 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20443110320 its reverse (2301134402), we get a palindrome (22744244722).

The spelling of 20443110320 in words is "twenty billion, four hundred forty-three million, one hundred ten thousand, three hundred twenty".