20023112223 has 16 divisors (see below), whose sum is σ = 29676413440. Its totient is φ = 13343096952.

The previous prime is 20023112203. The next prime is 20023112267. The reversal of 20023112223 is 32221132002.

20023112223 is a `hidden beast` number, since 200 + 231 + 12 + 223 = 666.

It is not a de Polignac number, because 20023112223 - 2⁵ = 20023112191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20023112196 and 20023112205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023112203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91261 + ... + 219942.

It is an arithmetic number, because the mean of its divisors is an integer number (1854775840).

Almost surely, 2^20023112223 is an apocalyptic number.

20023112223 is a deficient number, since it is larger than the sum of its proper divisors (9653301217).

20023112223 is a wasteful number, since it uses less digits than its factorization.

20023112223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313595 (or 313589 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20023112223 its reverse (32221132002), we get a palindrome (52244244225).

The spelling of 20023112223 in words is "twenty billion, twenty-three million, one hundred twelve thousand, two hundred twenty-three".