20330011423 has 2 divisors, whose sum is σ = 20330011424. Its totient is φ = 20330011422.

The previous prime is 20330011421. The next prime is 20330011439. The reversal of 20330011423 is 32411003302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20330011423 - 2¹ = 20330011421 is a prime.

Together with 20330011421, 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 20330011423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20330011421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10165005711 + 10165005712.

It is an arithmetic number, because the mean of its divisors is an integer number (10165005712).

Almost surely, 2^20330011423 is an apocalyptic number.

20330011423 is a deficient number, since it is larger than the sum of its proper divisors (1).

20330011423 is an equidigital number, since it uses as much as digits as its factorization.

20330011423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20330011423 its reverse (32411003302), we get a palindrome (52741014725).

The spelling of 20330011423 in words is "twenty billion, three hundred thirty million, eleven thousand, four hundred twenty-three".