20203313071 has 2 divisors, whose sum is σ = 20203313072. Its totient is φ = 20203313070.

The previous prime is 20203313069. The next prime is 20203313153. The reversal of 20203313071 is 17031330202.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20203313071 - 2¹ = 20203313069 is a prime.

Together with 20203313069, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20203313021) 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, 10101656535 + 10101656536.

It is an arithmetic number, because the mean of its divisors is an integer number (10101656536).

Almost surely, 2^20203313071 is an apocalyptic number.

20203313071 is a deficient number, since it is larger than the sum of its proper divisors (1).

20203313071 is an equidigital number, since it uses as much as digits as its factorization.

20203313071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 22.

Adding to 20203313071 its reverse (17031330202), we get a palindrome (37234643273).

The spelling of 20203313071 in words is "twenty billion, two hundred three million, three hundred thirteen thousand, seventy-one".