120863249209 has 2 divisors, whose sum is σ = 120863249210. Its totient is φ = 120863249208.

The previous prime is 120863249203. The next prime is 120863249237. The reversal of 120863249209 is 902942368021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110791119609 + 10072129600 = 332853^2 + 100360^2 .

It is a cyclic number.

It is not a de Polignac number, because 120863249209 - 2³³ = 112273314617 is a prime.

It is not a weakly prime, because it can be changed into another prime (120863249203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60431624604 + 60431624605.

It is an arithmetic number, because the mean of its divisors is an integer number (60431624605).

Almost surely, 2^120863249209 is an apocalyptic number.

It is an amenable number.

120863249209 is a deficient number, since it is larger than the sum of its proper divisors (1).

120863249209 is an equidigital number, since it uses as much as digits as its factorization.

120863249209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 46.

The spelling of 120863249209 in words is "one hundred twenty billion, eight hundred sixty-three million, two hundred forty-nine thousand, two hundred nine".