321130142 has 8 divisors (see below), whose sum is σ = 481966632. Its totient is φ = 160474600.

The previous prime is 321130093. The next prime is 321130189. The reversal of 321130142 is 241031123.

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

It is a self number, because there is not a number n which added to its sum of digits gives 321130142.

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 in 3 ways as a sum of consecutive naturals, for example, 40709 + ... + 47952.

It is an arithmetic number, because the mean of its divisors is an integer number (60245829).

Almost surely, 2^321130142 is an apocalyptic number.

321130142 is a deficient number, since it is larger than the sum of its proper divisors (160836490).

321130142 is a wasteful number, since it uses less digits than its factorization.

321130142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90474.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 321130142 is about 17920.1044081780. The cubic root of 321130142 is about 684.7946474506.

Adding to 321130142 its reverse (241031123), we get a palindrome (562161265).

The spelling of 321130142 in words is "three hundred twenty-one million, one hundred thirty thousand, one hundred forty-two".