1143241415809 has 2 divisors, whose sum is σ = 1143241415810. Its totient is φ = 1143241415808.

The previous prime is 1143241415807. The next prime is 1143241415831. The reversal of 1143241415809 is 9085141423411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 682408166400 + 460833249409 = 826080^2 + 678847^2 .

It is an emirp because it is prime and its reverse (9085141423411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1143241415809 - 2¹ = 1143241415807 is a prime.

Together with 1143241415807, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1143241415807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571620707904 + 571620707905.

It is an arithmetic number, because the mean of its divisors is an integer number (571620707905).

Almost surely, 2^{1143241415809} is an apocalyptic number.

It is an amenable number.

1143241415809 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143241415809 is an equidigital number, since it uses as much as digits as its factorization.

1143241415809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 138240, while the sum is 43.

The spelling of 1143241415809 in words is "one trillion, one hundred forty-three billion, two hundred forty-one million, four hundred fifteen thousand, eight hundred nine".