20003123223 has 6 divisors (see below), whose sum is σ = 28893400224. Its totient is φ = 13335415476.

The previous prime is 20003123213. The next prime is 20003123243. The reversal of 20003123223 is 32232130002.

It is a happy number.

It is not a de Polignac number, because 20003123223 - 2⁵ = 20003123191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20003123196 and 20003123205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20003123213) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1111284615 + ... + 1111284632.

It is an arithmetic number, because the mean of its divisors is an integer number (4815566704).

Almost surely, 2^20003123223 is an apocalyptic number.

20003123223 is a deficient number, since it is larger than the sum of its proper divisors (8890277001).

20003123223 is a wasteful number, since it uses less digits than its factorization.

20003123223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2222569253 (or 2222569250 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 20003123223 its reverse (32232130002), we get a palindrome (52235253225).

The spelling of 20003123223 in words is "twenty billion, three million, one hundred twenty-three thousand, two hundred twenty-three".