523430122 has 4 divisors (see below), whose sum is σ = 785145186. Its totient is φ = 261715060.

The previous prime is 523430057. The next prime is 523430137. The reversal of 523430122 is 221034325.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 369446841 + 153983281 = 19221^2 + 12409^2 .

It is a junction number, because it is equal to n+sod(n) for n = 523430093 and 523430102.

It is an unprimeable number.

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, 130857529 + ... + 130857532.

Almost surely, 2^523430122 is an apocalyptic number.

523430122 is a deficient number, since it is larger than the sum of its proper divisors (261715064).

523430122 is a wasteful number, since it uses less digits than its factorization.

523430122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261715063.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 523430122 is about 22878.5952803051. The cubic root of 523430122 is about 805.9094293655.

Adding to 523430122 its reverse (221034325), we get a palindrome (744464447).

The spelling of 523430122 in words is "five hundred twenty-three million, four hundred thirty thousand, one hundred twenty-two".