130243423522 has 8 divisors (see below), whose sum is σ = 196609499676. Its totient is φ = 64706923632.

The previous prime is 130243423487. The next prime is 130243423523. The reversal of 130243423522 is 225324342031.

It can be written as a sum of positive squares in 2 ways, for example, as 128580333561 + 1663089961 = 358581^2 + 40781^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (130243423523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207393673 + ... + 207394300.

Almost surely, 2^130243423522 is an apocalyptic number.

130243423522 is a deficient number, since it is larger than the sum of its proper divisors (66366076154).

130243423522 is a wasteful number, since it uses less digits than its factorization.

130243423522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414788132.

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 130243423522 its reverse (225324342031), we get a palindrome (355567765553).

The spelling of 130243423522 in words is "one hundred thirty billion, two hundred forty-three million, four hundred twenty-three thousand, five hundred twenty-two".