130243102442 has 4 divisors (see below), whose sum is σ = 195364653666. Its totient is φ = 65121551220.

The previous prime is 130243102441. The next prime is 130243102459. The reversal of 130243102442 is 244201342031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 244201342031 = 107 ⋅2282255533.

It can be written as a sum of positive squares in only one way, i.e., 104276680561 + 25966421881 = 322919^2 + 161141^2 .

It is not an unprimeable number, because it can be changed into a prime (130243102441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32560775609 + ... + 32560775612.

Almost surely, 2^130243102442 is an apocalyptic number.

130243102442 is a deficient number, since it is larger than the sum of its proper divisors (65121551224).

130243102442 is an equidigital number, since it uses as much as digits as its factorization.

130243102442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65121551223.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 130243102442 its reverse (244201342031), we get a palindrome (374444444473).

The spelling of 130243102442 in words is "one hundred thirty billion, two hundred forty-three million, one hundred two thousand, four hundred forty-two".