142003423 has 2 divisors, whose sum is σ = 142003424. Its totient is φ = 142003422.

The previous prime is 142003409. The next prime is 142003427. The reversal of 142003423 is 324300241.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142003423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142003423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142003427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71001711 + 71001712.

It is an arithmetic number, because the mean of its divisors is an integer number (71001712).

Almost surely, 2^142003423 is an apocalyptic number.

142003423 is a deficient number, since it is larger than the sum of its proper divisors (1).

142003423 is an equidigital number, since it uses as much as digits as its factorization.

142003423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 142003423 is about 11916.5189128369. The cubic root of 142003423 is about 521.7145366468.

Adding to 142003423 its reverse (324300241), we get a palindrome (466303664).

The spelling of 142003423 in words is "one hundred forty-two million, three thousand, four hundred twenty-three".