20317354073 has 2 divisors, whose sum is σ = 20317354074. Its totient is φ = 20317354072.

The previous prime is 20317354051. The next prime is 20317354081. The reversal of 20317354073 is 37045371302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11675234704 + 8642119369 = 108052^2 + 92963^2 .

It is a cyclic number.

It is not a de Polignac number, because 20317354073 - 2¹² = 20317349977 is a prime.

It is not a weakly prime, because it can be changed into another prime (20317354033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10158677036 + 10158677037.

It is an arithmetic number, because the mean of its divisors is an integer number (10158677037).

Almost surely, 2^20317354073 is an apocalyptic number.

It is an amenable number.

20317354073 is a deficient number, since it is larger than the sum of its proper divisors (1).

20317354073 is an equidigital number, since it uses as much as digits as its factorization.

20317354073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 35.

The spelling of 20317354073 in words is "twenty billion, three hundred seventeen million, three hundred fifty-four thousand, seventy-three".