130420400042 has 8 divisors (see below), whose sum is σ = 195712358436. Its totient is φ = 65182947232.

The previous prime is 130420400041. The next prime is 130420400083. The reversal of 130420400042 is 240004024031.

It can be written as a sum of positive squares in 2 ways, for example, as 117024883921 + 13395516121 = 342089^2 + 115739^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 130420399987 and 130420400023.

It is not an unprimeable number, because it can be changed into a prime (130420400041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13620413 + ... + 13629984.

Almost surely, 2^130420400042 is an apocalyptic number.

130420400042 is a deficient number, since it is larger than the sum of its proper divisors (65291958394).

130420400042 is a wasteful number, since it uses less digits than its factorization.

130420400042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27252792.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 130420400042 its reverse (240004024031), we get a palindrome (370424424073).

The spelling of 130420400042 in words is "one hundred thirty billion, four hundred twenty million, four hundred thousand, forty-two".