1218214550743 has 2 divisors, whose sum is σ = 1218214550744. Its totient is φ = 1218214550742.

The previous prime is 1218214550741. The next prime is 1218214550753. The reversal of 1218214550743 is 3470554128121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1218214550743 - 2¹ = 1218214550741 is a prime.

Together with 1218214550741, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1218214550743.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1218214550741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 609107275371 + 609107275372.

It is an arithmetic number, because the mean of its divisors is an integer number (609107275372).

Almost surely, 2^{1218214550743} is an apocalyptic number.

1218214550743 is a deficient number, since it is larger than the sum of its proper divisors (1).

1218214550743 is an equidigital number, since it uses as much as digits as its factorization.

1218214550743 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 268800, while the sum is 43.

Adding to 1218214550743 its reverse (3470554128121), we get a palindrome (4688768678864).

The spelling of 1218214550743 in words is "one trillion, two hundred eighteen billion, two hundred fourteen million, five hundred fifty thousand, seven hundred forty-three".