20211303044044 has 48 divisors (see below), whose sum is σ = 40455827193600. Its totient is φ = 8654869713600.

The previous prime is 20211303044041. The next prime is 20211303044057. The reversal of 20211303044044 is 44044030311202.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (20211303044041) 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, 393580882 + ... + 393632230.

It is an arithmetic number, because the mean of its divisors is an integer number (842829733200).

Almost surely, 2^{20211303044044} is an apocalyptic number.

It is an amenable number.

20211303044044 is an abundant number, since it is smaller than the sum of its proper divisors (20244524149556).

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

20211303044044 is a wasteful number, since it uses less digits than its factorization.

20211303044044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62638 (or 62636 counting only the distinct ones).

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

Adding to 20211303044044 its reverse (44044030311202), we get a palindrome (64255333355246).

The spelling of 20211303044044 in words is "twenty trillion, two hundred eleven billion, three hundred three million, forty-four thousand, forty-four".