1223234143 has 2 divisors, whose sum is σ = 1223234144. Its totient is φ = 1223234142.

The previous prime is 1223234137. The next prime is 1223234147. The reversal of 1223234143 is 3414323221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1223234143 - 2⁹ = 1223233631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223234147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611617071 + 611617072.

It is an arithmetic number, because the mean of its divisors is an integer number (611617072).

Almost surely, 2^1223234143 is an apocalyptic number.

1223234143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223234143 is an equidigital number, since it uses as much as digits as its factorization.

1223234143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 25.

The square root of 1223234143 is about 34974.7643737595. The cubic root of 1223234143 is about 1069.4730986607.

Adding to 1223234143 its reverse (3414323221), we get a palindrome (4637557364).

The spelling of 1223234143 in words is "one billion, two hundred twenty-three million, two hundred thirty-four thousand, one hundred forty-three".