130223124 has 18 divisors (see below), whose sum is σ = 329175210. Its totient is φ = 43407696.

The previous prime is 130223113. The next prime is 130223129. The reversal of 130223124 is 421322031.

It can be written as a sum of positive squares in only one way, i.e., 125888400 + 4334724 = 11220^2 + 2082^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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 = 130223097 and 130223106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130223129) 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 5 ways as a sum of consecutive naturals, for example, 1808619 + ... + 1808690.

Almost surely, 2^130223124 is an apocalyptic number.

It is an amenable number.

130223124 is an abundant number, since it is smaller than the sum of its proper divisors (198952086).

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

130223124 is a wasteful number, since it uses less digits than its factorization.

130223124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3617319 (or 3617314 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 130223124 is about 11411.5346908293. The cubic root of 130223124 is about 506.8693569999.

Adding to 130223124 its reverse (421322031), we get a palindrome (551545155).

The spelling of 130223124 in words is "one hundred thirty million, two hundred twenty-three thousand, one hundred twenty-four".