130123522 has 24 divisors (see below), whose sum is σ = 205205940. Its totient is φ = 61810560.

The previous prime is 130123501. The next prime is 130123529. The reversal of 130123522 is 225321031.

130123522 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 30702681 + 99420841 = 5541^2 + 9971^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 130123522.

It is not an unprimeable number, because it can be changed into a prime (130123529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 308872 + ... + 309292.

Almost surely, 2^130123522 is an apocalyptic number.

130123522 is a deficient number, since it is larger than the sum of its proper divisors (75082418).

130123522 is an equidigital number, since it uses as much as digits as its factorization.

130123522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598 (or 525 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 130123522 is about 11407.1697629167. The cubic root of 130123522 is about 506.7400966020.

Adding to 130123522 its reverse (225321031), we get a palindrome (355444553).

The spelling of 130123522 in words is "one hundred thirty million, one hundred twenty-three thousand, five hundred twenty-two".