130306122 has 24 divisors (see below), whose sum is σ = 298938276. Its totient is φ = 40880256.

The previous prime is 130306117. The next prime is 130306129. The reversal of 130306122 is 221603031.

It can be written as a sum of positive squares in 2 ways, for example, as 125417601 + 4888521 = 11199^2 + 2211^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 130306095 and 130306104.

It is not an unprimeable number, because it can be changed into a prime (130306129) 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, 212613 + ... + 213224.

Almost surely, 2^130306122 is an apocalyptic number.

130306122 is an abundant number, since it is smaller than the sum of its proper divisors (168632154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130306122 is a wasteful number, since it uses less digits than its factorization.

130306122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425862 (or 425859 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 130306122 is about 11415.1706951758. The cubic root of 130306122 is about 506.9770189040.

Adding to 130306122 its reverse (221603031), we get a palindrome (351909153).

The spelling of 130306122 in words is "one hundred thirty million, three hundred six thousand, one hundred twenty-two".