20243111223 has 8 divisors (see below), whose sum is σ = 27126448000. Its totient is φ = 13427590968.

The previous prime is 20243111177. The next prime is 20243111227. The reversal of 20243111223 is 32211134202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20243111223 - 2⁶ = 20243111159 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 20243111223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20243111227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16953433 + ... + 16954626.

It is an arithmetic number, because the mean of its divisors is an integer number (3390806000).

Almost surely, 2^20243111223 is an apocalyptic number.

20243111223 is a deficient number, since it is larger than the sum of its proper divisors (6883336777).

20243111223 is a wasteful number, since it uses less digits than its factorization.

20243111223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33908261.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20243111223 its reverse (32211134202), we get a palindrome (52454245425).

The spelling of 20243111223 in words is "twenty billion, two hundred forty-three million, one hundred eleven thousand, two hundred twenty-three".