1020311303117 has 2 divisors, whose sum is σ = 1020311303118. Its totient is φ = 1020311303116.

The previous prime is 1020311303101. The next prime is 1020311303153. The reversal of 1020311303117 is 7113031130201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 756376350601 + 263934952516 = 869699^2 + 513746^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020311303117 - 2⁴ = 1020311303101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1020311303092 and 1020311303101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020311303177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510155651558 + 510155651559.

It is an arithmetic number, because the mean of its divisors is an integer number (510155651559).

Almost surely, 2^{1020311303117} is an apocalyptic number.

It is an amenable number.

1020311303117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020311303117 is an equidigital number, since it uses as much as digits as its factorization.

1020311303117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 23.

Adding to 1020311303117 its reverse (7113031130201), we get a palindrome (8133342433318).

The spelling of 1020311303117 in words is "one trillion, twenty billion, three hundred eleven million, three hundred three thousand, one hundred seventeen".