320142043242 has 48 divisors (see below), whose sum is σ = 793353854592. Its totient is φ = 91397481120.

The previous prime is 320142043183. The next prime is 320142043259. The reversal of 320142043242 is 242340241023.

320142043242 is a `hidden beast` number, since 3 + 201 + 4 + 20 + 432 + 4 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 833934 + ... + 1155737.

It is an arithmetic number, because the mean of its divisors is an integer number (16528205304).

Almost surely, 2^320142043242 is an apocalyptic number.

320142043242 is an abundant number, since it is smaller than the sum of its proper divisors (473211811350).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320142043242 is a wasteful number, since it uses less digits than its factorization.

320142043242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1990963 (or 1990960 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 320142043242 its reverse (242340241023), we get a palindrome (562482284265).

The spelling of 320142043242 in words is "three hundred twenty billion, one hundred forty-two million, forty-three thousand, two hundred forty-two".