1070981720813 has 2 divisors, whose sum is σ = 1070981720814. Its totient is φ = 1070981720812.

The previous prime is 1070981720807. The next prime is 1070981720839. The reversal of 1070981720813 is 3180271890701.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 638947632964 + 432034087849 = 799342^2 + 657293^2 .

It is a cyclic number.

It is not a de Polignac number, because 1070981720813 - 2¹⁶ = 1070981655277 is a prime.

It is a super-2 number, since 2×1070981720813² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1070981720213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535490860406 + 535490860407.

It is an arithmetic number, because the mean of its divisors is an integer number (535490860407).

Almost surely, 2^{1070981720813} is an apocalyptic number.

It is an amenable number.

1070981720813 is a deficient number, since it is larger than the sum of its proper divisors (1).

1070981720813 is an equidigital number, since it uses as much as digits as its factorization.

1070981720813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 47.

The spelling of 1070981720813 in words is "one trillion, seventy billion, nine hundred eighty-one million, seven hundred twenty thousand, eight hundred thirteen".