1020703666813 has 2 divisors, whose sum is σ = 1020703666814. Its totient is φ = 1020703666812.

The previous prime is 1020703666781. The next prime is 1020703666819. The reversal of 1020703666813 is 3186663070201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 981579618009 + 39124048804 = 990747^2 + 197798^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020703666813 - 2⁵ = 1020703666781 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1020703666813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020703666819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510351833406 + 510351833407.

It is an arithmetic number, because the mean of its divisors is an integer number (510351833407).

Almost surely, 2^{1020703666813} is an apocalyptic number.

It is an amenable number.

1020703666813 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020703666813 is an equidigital number, since it uses as much as digits as its factorization.

1020703666813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 1020703666813 in words is "one trillion, twenty billion, seven hundred three million, six hundred sixty-six thousand, eight hundred thirteen".