20112344443 has 4 divisors (see below), whose sum is σ = 20214437760. Its totient is φ = 20010251128.

The previous prime is 20112344419. The next prime is 20112344471. The reversal of 20112344443 is 34444321102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20112344443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20112341443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51046363 + ... + 51046756.

It is an arithmetic number, because the mean of its divisors is an integer number (5053609440).

Almost surely, 2^20112344443 is an apocalyptic number.

20112344443 is a deficient number, since it is larger than the sum of its proper divisors (102093317).

20112344443 is a wasteful number, since it uses less digits than its factorization.

20112344443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102093316.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 20112344443 its reverse (34444321102), we get a palindrome (54556665545).

The spelling of 20112344443 in words is "twenty billion, one hundred twelve million, three hundred forty-four thousand, four hundred forty-three".