20443321104 has 80 divisors (see below), whose sum is σ = 56597603712. Its totient is φ = 6341981184.

The previous prime is 20443321091. The next prime is 20443321109. The reversal of 20443321104 is 40112334402.

It is a super-2 number, since 2×20443321104² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (20443321109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209389 + ... + 291084.

Almost surely, 2^20443321104 is an apocalyptic number.

20443321104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20443321104 is an abundant number, since it is smaller than the sum of its proper divisors (36154282608).

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

20443321104 is a wasteful number, since it uses less digits than its factorization.

20443321104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500544 (or 500538 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 20443321104 its reverse (40112334402), we get a palindrome (60555655506).

The spelling of 20443321104 in words is "twenty billion, four hundred forty-three million, three hundred twenty-one thousand, one hundred four".