424135123 has 2 divisors, whose sum is σ = 424135124. Its totient is φ = 424135122.

The previous prime is 424135093. The next prime is 424135139. The reversal of 424135123 is 321531424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 424135123 - 2⁹ = 424134611 is a prime.

It is not a weakly prime, because it can be changed into another prime (424135223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212067561 + 212067562.

It is an arithmetic number, because the mean of its divisors is an integer number (212067562).

Almost surely, 2^424135123 is an apocalyptic number.

424135123 is a deficient number, since it is larger than the sum of its proper divisors (1).

424135123 is an equidigital number, since it uses as much as digits as its factorization.

424135123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 25.

The square root of 424135123 is about 20594.5410970966. The cubic root of 424135123 is about 751.3369474939.

Adding to 424135123 its reverse (321531424), we get a palindrome (745666547).

The spelling of 424135123 in words is "four hundred twenty-four million, one hundred thirty-five thousand, one hundred twenty-three".