20444311012 has 24 divisors (see below), whose sum is σ = 36854969760. Its totient is φ = 9917106240.

The previous prime is 20444310977. The next prime is 20444311051. The reversal of 20444311012 is 21011344402.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318858 + ... + 377569.

It is an arithmetic number, because the mean of its divisors is an integer number (1535623740).

Almost surely, 2^20444311012 is an apocalyptic number.

It is an amenable number.

20444311012 is a deficient number, since it is larger than the sum of its proper divisors (16410658748).

20444311012 is a wasteful number, since it uses less digits than its factorization.

20444311012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696651 (or 696649 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 20444311012 its reverse (21011344402), we get a palindrome (41455655414).

The spelling of 20444311012 in words is "twenty billion, four hundred forty-four million, three hundred eleven thousand, twelve".