20243144443 has 16 divisors (see below), whose sum is σ = 20834643456. Its totient is φ = 19657451520.

The previous prime is 20243144431. The next prime is 20243144459. The reversal of 20243144443 is 34444134202.

It is a cyclic number.

It is not a de Polignac number, because 20243144443 - 2³³ = 11653209851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20243144843) 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, 6971730 + ... + 6974632.

It is an arithmetic number, because the mean of its divisors is an integer number (1302165216).

Almost surely, 2^20243144443 is an apocalyptic number.

20243144443 is a deficient number, since it is larger than the sum of its proper divisors (591499013).

20243144443 is a wasteful number, since it uses less digits than its factorization.

20243144443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3834.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 20243144443 its reverse (34444134202), we get a palindrome (54687278645).

The spelling of 20243144443 in words is "twenty billion, two hundred forty-three million, one hundred forty-four thousand, four hundred forty-three".