413128123 has 2 divisors, whose sum is σ = 413128124. Its totient is φ = 413128122.

The previous prime is 413128099. The next prime is 413128129. The reversal of 413128123 is 321821314.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-413128123 is a prime.

It is not a weakly prime, because it can be changed into another prime (413128129) 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, 206564061 + 206564062.

It is an arithmetic number, because the mean of its divisors is an integer number (206564062).

Almost surely, 2^413128123 is an apocalyptic number.

413128123 is a deficient number, since it is larger than the sum of its proper divisors (1).

413128123 is an equidigital number, since it uses as much as digits as its factorization.

413128123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 25.

The square root of 413128123 is about 20325.5534487994. The cubic root of 413128123 is about 744.7804244575.

Adding to 413128123 its reverse (321821314), we get a palindrome (734949437).

The spelling of 413128123 in words is "four hundred thirteen million, one hundred twenty-eight thousand, one hundred twenty-three".