20110443423 has 16 divisors (see below), whose sum is σ = 30960410880. Its totient is φ = 11373209856.

The previous prime is 20110443421. The next prime is 20110443427. The reversal of 20110443423 is 32434401102.

It is not a de Polignac number, because 20110443423 - 2¹ = 20110443421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20110443393 and 20110443402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110443421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4934253 + ... + 4938326.

It is an arithmetic number, because the mean of its divisors is an integer number (1935025680).

Almost surely, 2^20110443423 is an apocalyptic number.

20110443423 is a deficient number, since it is larger than the sum of its proper divisors (10849967457).

20110443423 is an equidigital number, since it uses as much as digits as its factorization.

20110443423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9872686.

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

Adding to 20110443423 its reverse (32434401102), we get a palindrome (52544844525).

The spelling of 20110443423 in words is "twenty billion, one hundred ten million, four hundred forty-three thousand, four hundred twenty-three".