20733327317 has 2 divisors, whose sum is σ = 20733327318. Its totient is φ = 20733327316.

The previous prime is 20733327283. The next prime is 20733327343. The reversal of 20733327317 is 71372333702.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20006970916 + 726356401 = 141446^2 + 26951^2 .

It is a cyclic number.

It is not a de Polignac number, because 20733327317 - 2²⁰ = 20732278741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20733327397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10366663658 + 10366663659.

It is an arithmetic number, because the mean of its divisors is an integer number (10366663659).

Almost surely, 2^20733327317 is an apocalyptic number.

It is an amenable number.

20733327317 is a deficient number, since it is larger than the sum of its proper divisors (1).

20733327317 is an equidigital number, since it uses as much as digits as its factorization.

20733327317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 111132, while the sum is 38.

The spelling of 20733327317 in words is "twenty billion, seven hundred thirty-three million, three hundred twenty-seven thousand, three hundred seventeen".