1011683151209 has 2 divisors, whose sum is σ = 1011683151210. Its totient is φ = 1011683151208.

The previous prime is 1011683151181. The next prime is 1011683151223. The reversal of 1011683151209 is 9021513861101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 839325325609 + 172357825600 = 916147^2 + 415160^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011683151209 - 2⁸ = 1011683150953 is a prime.

It is not a weakly prime, because it can be changed into another prime (1011683151239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505841575604 + 505841575605.

It is an arithmetic number, because the mean of its divisors is an integer number (505841575605).

Almost surely, 2^{1011683151209} is an apocalyptic number.

It is an amenable number.

1011683151209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011683151209 is an equidigital number, since it uses as much as digits as its factorization.

1011683151209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 38.

The spelling of 1011683151209 in words is "one trillion, eleven billion, six hundred eighty-three million, one hundred fifty-one thousand, two hundred nine".