101020204717 has 2 divisors, whose sum is σ = 101020204718. Its totient is φ = 101020204716.

The previous prime is 101020204697. The next prime is 101020204723. The reversal of 101020204717 is 717402020101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79585487881 + 21434716836 = 282109^2 + 146406^2 .

It is a cyclic number.

It is not a de Polignac number, because 101020204717 - 2¹⁵ = 101020171949 is a prime.

It is a super-2 number, since 2×101020204717² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101020204691 and 101020204700.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101020204517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50510102358 + 50510102359.

It is an arithmetic number, because the mean of its divisors is an integer number (50510102359).

Almost surely, 2^101020204717 is an apocalyptic number.

It is an amenable number.

101020204717 is a deficient number, since it is larger than the sum of its proper divisors (1).

101020204717 is an equidigital number, since it uses as much as digits as its factorization.

101020204717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 784, while the sum is 25.

Adding to 101020204717 its reverse (717402020101), we get a palindrome (818422224818).

The spelling of 101020204717 in words is "one hundred one billion, twenty million, two hundred four thousand, seven hundred seventeen".