1168420243 has 2 divisors, whose sum is σ = 1168420244. Its totient is φ = 1168420242.

The previous prime is 1168420223. The next prime is 1168420249. The reversal of 1168420243 is 3420248611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1168420243 - 2⁹ = 1168419731 is a prime.

It is not a weakly prime, because it can be changed into another prime (1168420249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 584210121 + 584210122.

It is an arithmetic number, because the mean of its divisors is an integer number (584210122).

Almost surely, 2^1168420243 is an apocalyptic number.

1168420243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1168420243 is an equidigital number, since it uses as much as digits as its factorization.

1168420243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 1168420243 is about 34182.1626436947. The cubic root of 1168420243 is about 1053.2537745573.

Adding to 1168420243 its reverse (3420248611), we get a palindrome (4588668854).

The spelling of 1168420243 in words is "one billion, one hundred sixty-eight million, four hundred twenty thousand, two hundred forty-three".