20603333423 has 2 divisors, whose sum is σ = 20603333424. Its totient is φ = 20603333422.

The previous prime is 20603333383. The next prime is 20603333479. The reversal of 20603333423 is 32433330602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20603333423 - 2⁸ = 20603333167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20603333483) 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, 10301666711 + 10301666712.

It is an arithmetic number, because the mean of its divisors is an integer number (10301666712).

Almost surely, 2^20603333423 is an apocalyptic number.

20603333423 is a deficient number, since it is larger than the sum of its proper divisors (1).

20603333423 is an equidigital number, since it uses as much as digits as its factorization.

20603333423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 29.

The spelling of 20603333423 in words is "twenty billion, six hundred three million, three hundred thirty-three thousand, four hundred twenty-three".