20213041244423 has 16 divisors (see below), whose sum is σ = 20859653066400. Its totient is φ = 19577149470720.

The previous prime is 20213041244311. The next prime is 20213041244441. The reversal of 20213041244423 is 32444214031202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20213041244423 - 2²⁶ = 20212974135559 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20213041244423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20213041244443) 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, 1475333 + ... + 6527073.

It is an arithmetic number, because the mean of its divisors is an integer number (1303728316650).

Almost surely, 2^{20213041244423} is an apocalyptic number.

20213041244423 is a deficient number, since it is larger than the sum of its proper divisors (646611821977).

20213041244423 is an equidigital number, since it uses as much as digits as its factorization.

20213041244423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5052802.

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 20213041244423 its reverse (32444214031202), we get a palindrome (52657255275625).

The spelling of 20213041244423 in words is "twenty trillion, two hundred thirteen billion, forty-one million, two hundred forty-four thousand, four hundred twenty-three".