1351143666109 has 2 divisors, whose sum is σ = 1351143666110. Its totient is φ = 1351143666108.

The previous prime is 1351143666053. The next prime is 1351143666211. The reversal of 1351143666109 is 9016663411531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 896530603609 + 454613062500 = 946853^2 + 674250^2 .

It is a cyclic number.

It is not a de Polignac number, because 1351143666109 - 2¹¹ = 1351143664061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1351143666809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 675571833054 + 675571833055.

It is an arithmetic number, because the mean of its divisors is an integer number (675571833055).

Almost surely, 2^{1351143666109} is an apocalyptic number.

It is an amenable number.

1351143666109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1351143666109 is an equidigital number, since it uses as much as digits as its factorization.

1351143666109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 349920, while the sum is 46.

The spelling of 1351143666109 in words is "one trillion, three hundred fifty-one billion, one hundred forty-three million, six hundred sixty-six thousand, one hundred nine".