130323440242 has 4 divisors (see below), whose sum is σ = 195485160366. Its totient is φ = 65161720120.

The previous prime is 130323440231. The next prime is 130323440251. The reversal of 130323440242 is 242044323031.

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., 121494770721 + 8828669521 = 348561^2 + 93961^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 130323440242.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32580860059 + ... + 32580860062.

Almost surely, 2^130323440242 is an apocalyptic number.

130323440242 is a deficient number, since it is larger than the sum of its proper divisors (65161720124).

130323440242 is an equidigital number, since it uses as much as digits as its factorization.

130323440242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65161720123.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 130323440242 its reverse (242044323031), we get a palindrome (372367763273).

The spelling of 130323440242 in words is "one hundred thirty billion, three hundred twenty-three million, four hundred forty thousand, two hundred forty-two".