1143604813217 has 2 divisors, whose sum is σ = 1143604813218. Its totient is φ = 1143604813216.

The previous prime is 1143604813163. The next prime is 1143604813231. The reversal of 1143604813217 is 7123184063411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1142228700001 + 1376113216 = 1068751^2 + 37096^2 .

It is a cyclic number.

It is not a de Polignac number, because 1143604813217 - 2¹⁰ = 1143604812193 is a prime.

It is not a weakly prime, because it can be changed into another prime (1143604813277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571802406608 + 571802406609.

It is an arithmetic number, because the mean of its divisors is an integer number (571802406609).

Almost surely, 2^{1143604813217} is an apocalyptic number.

It is an amenable number.

1143604813217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143604813217 is an equidigital number, since it uses as much as digits as its factorization.

1143604813217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 41.

Adding to 1143604813217 its reverse (7123184063411), we get a palindrome (8266788876628).

The spelling of 1143604813217 in words is "one trillion, one hundred forty-three billion, six hundred four million, eight hundred thirteen thousand, two hundred seventeen".