420321130142 has 4 divisors (see below), whose sum is σ = 630481695216. Its totient is φ = 210160565070.

The previous prime is 420321130087. The next prime is 420321130169. The reversal of 420321130142 is 241031123024.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 105080282534 + ... + 105080282537.

It is an arithmetic number, because the mean of its divisors is an integer number (157620423804).

Almost surely, 2^420321130142 is an apocalyptic number.

420321130142 is a deficient number, since it is larger than the sum of its proper divisors (210160565074).

420321130142 is a wasteful number, since it uses less digits than its factorization.

420321130142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210160565073.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 420321130142 its reverse (241031123024), we get a palindrome (661352253166).

The spelling of 420321130142 in words is "four hundred twenty billion, three hundred twenty-one million, one hundred thirty thousand, one hundred forty-two".