1224342143 has 2 divisors, whose sum is σ = 1224342144. Its totient is φ = 1224342142.

The previous prime is 1224342061. The next prime is 1224342157. The reversal of 1224342143 is 3412434221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1224342143 - 2¹⁰ = 1224341119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223342143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612171071 + 612171072.

It is an arithmetic number, because the mean of its divisors is an integer number (612171072).

Almost surely, 2^1224342143 is an apocalyptic number.

1224342143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1224342143 is an equidigital number, since it uses as much as digits as its factorization.

1224342143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 26.

The square root of 1224342143 is about 34990.6007807811. The cubic root of 1224342143 is about 1069.7959091921.

Adding to 1224342143 its reverse (3412434221), we get a palindrome (4636776364).

The spelling of 1224342143 in words is "one billion, two hundred twenty-four million, three hundred forty-two thousand, one hundred forty-three".