20317852903 has 2 divisors, whose sum is σ = 20317852904. Its totient is φ = 20317852902.

The previous prime is 20317852859. The next prime is 20317852927. The reversal of 20317852903 is 30925871302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20317852903 - 2⁹ = 20317852391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20317852993) 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, 10158926451 + 10158926452.

It is an arithmetic number, because the mean of its divisors is an integer number (10158926452).

Almost surely, 2^20317852903 is an apocalyptic number.

20317852903 is a deficient number, since it is larger than the sum of its proper divisors (1).

20317852903 is an equidigital number, since it uses as much as digits as its factorization.

20317852903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 40.

The spelling of 20317852903 in words is "twenty billion, three hundred seventeen million, eight hundred fifty-two thousand, nine hundred three".