1442143123 has 2 divisors, whose sum is σ = 1442143124. Its totient is φ = 1442143122.

The previous prime is 1442143121. The next prime is 1442143127. The reversal of 1442143123 is 3213412441.

It is a weak prime.

It is an emirp because it is prime and its reverse (3213412441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1442143123 - 2¹ = 1442143121 is a prime.

Together with 1442143121, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1442143121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721071561 + 721071562.

It is an arithmetic number, because the mean of its divisors is an integer number (721071562).

Almost surely, 2^1442143123 is an apocalyptic number.

1442143123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442143123 is an equidigital number, since it uses as much as digits as its factorization.

1442143123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 25.

The square root of 1442143123 is about 37975.5595482147. The cubic root of 1442143123 is about 1129.8031669585.

Adding to 1442143123 its reverse (3213412441), we get a palindrome (4655555564).

The spelling of 1442143123 in words is "one billion, four hundred forty-two million, one hundred forty-three thousand, one hundred twenty-three".