1021012031317 has 2 divisors, whose sum is σ = 1021012031318. Its totient is φ = 1021012031316.

The previous prime is 1021012031293. The next prime is 1021012031321. The reversal of 1021012031317 is 7131302101201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 859117656996 + 161894374321 = 926886^2 + 402361^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021012031317 - 2¹¹ = 1021012029269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021012031357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510506015658 + 510506015659.

It is an arithmetic number, because the mean of its divisors is an integer number (510506015659).

Almost surely, 2^{1021012031317} is an apocalyptic number.

It is an amenable number.

1021012031317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021012031317 is an equidigital number, since it uses as much as digits as its factorization.

1021012031317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 22.

Adding to 1021012031317 its reverse (7131302101201), we get a palindrome (8152314132518).

The spelling of 1021012031317 in words is "one trillion, twenty-one billion, twelve million, thirty-one thousand, three hundred seventeen".