20023330123 has 2 divisors, whose sum is σ = 20023330124. Its totient is φ = 20023330122.

The previous prime is 20023330121. The next prime is 20023330141. The reversal of 20023330123 is 32103332002.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20023330123 - 2¹ = 20023330121 is a prime.

Together with 20023330121, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20023330123.

It is not a weakly prime, because it can be changed into another prime (20023330121) 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 as a sum of consecutive naturals, namely, 10011665061 + 10011665062.

It is an arithmetic number, because the mean of its divisors is an integer number (10011665062).

Almost surely, 2^20023330123 is an apocalyptic number.

20023330123 is a deficient number, since it is larger than the sum of its proper divisors (1).

20023330123 is an equidigital number, since it uses as much as digits as its factorization.

20023330123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 20023330123 its reverse (32103332002), we get a palindrome (52126662125).

The spelling of 20023330123 in words is "twenty billion, twenty-three million, three hundred thirty thousand, one hundred twenty-three".