20123030223 has 12 divisors (see below), whose sum is σ = 29354388648. Its totient is φ = 13282527600.

The previous prime is 20123030183. The next prime is 20123030227. The reversal of 20123030223 is 32203032102.

It is a happy number.

It is not a de Polignac number, because 20123030223 - 2⁸ = 20123029967 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20123030196 and 20123030205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123030227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11067865 + ... + 11069682.

It is an arithmetic number, because the mean of its divisors is an integer number (2446199054).

Almost surely, 2^20123030223 is an apocalyptic number.

20123030223 is a deficient number, since it is larger than the sum of its proper divisors (9231358425).

20123030223 is a wasteful number, since it uses less digits than its factorization.

20123030223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22137654 (or 22137651 counting only the distinct ones).

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

Adding to 20123030223 its reverse (32203032102), we get a palindrome (52326062325).

The spelling of 20123030223 in words is "twenty billion, one hundred twenty-three million, thirty thousand, two hundred twenty-three".