1310100021317 has 2 divisors, whose sum is σ = 1310100021318. Its totient is φ = 1310100021316.

The previous prime is 1310100021283. The next prime is 1310100021353. The reversal of 1310100021317 is 7131200010131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1168807480996 + 141292540321 = 1081114^2 + 375889^2 .

It is a cyclic number.

It is not a de Polignac number, because 1310100021317 - 2¹⁸ = 1310099759173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1310100029317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655050010658 + 655050010659.

It is an arithmetic number, because the mean of its divisors is an integer number (655050010659).

Almost surely, 2^{1310100021317} is an apocalyptic number.

It is an amenable number.

1310100021317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310100021317 is an equidigital number, since it uses as much as digits as its factorization.

1310100021317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126, while the sum is 20.

Adding to 1310100021317 its reverse (7131200010131), we get a palindrome (8441300031448).

The spelling of 1310100021317 in words is "one trillion, three hundred ten billion, one hundred million, twenty-one thousand, three hundred seventeen".