130042342 has 4 divisors (see below), whose sum is σ = 195063516. Its totient is φ = 65021170.

The previous prime is 130042307. The next prime is 130042361. The reversal of 130042342 is 243240031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 243240031 = 941 ⋅258491.

It is a super-2 number, since 2×130042342² = 33822021425689928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32510584 + ... + 32510587.

It is an arithmetic number, because the mean of its divisors is an integer number (48765879).

Almost surely, 2^130042342 is an apocalyptic number.

130042342 is a deficient number, since it is larger than the sum of its proper divisors (65021174).

130042342 is an equidigital number, since it uses as much as digits as its factorization.

130042342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65021173.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 130042342 is about 11403.6109193536. The cubic root of 130042342 is about 506.6346949085.

Adding to 130042342 its reverse (243240031), we get a palindrome (373282373).

The spelling of 130042342 in words is "one hundred thirty million, forty-two thousand, three hundred forty-two".