142123103 has 2 divisors, whose sum is σ = 142123104. Its totient is φ = 142123102.

The previous prime is 142123087. The next prime is 142123109. The reversal of 142123103 is 301321241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142123103 - 2⁴ = 142123087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142123109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71061551 + 71061552.

It is an arithmetic number, because the mean of its divisors is an integer number (71061552).

Almost surely, 2^142123103 is an apocalyptic number.

142123103 is a deficient number, since it is larger than the sum of its proper divisors (1).

142123103 is an equidigital number, since it uses as much as digits as its factorization.

142123103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 142123103 is about 11921.5394559595. The cubic root of 142123103 is about 521.8610619008.

Adding to 142123103 its reverse (301321241), we get a palindrome (443444344).

The spelling of 142123103 in words is "one hundred forty-two million, one hundred twenty-three thousand, one hundred three".