242431020642 has 32 divisors (see below), whose sum is σ = 486197208000. Its totient is φ = 80588003328.

The previous prime is 242431020599. The next prime is 242431020661. The reversal of 242431020642 is 246020134242.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5330334 + ... + 5375622.

It is an arithmetic number, because the mean of its divisors is an integer number (15193662750).

Almost surely, 2^242431020642 is an apocalyptic number.

242431020642 is an abundant number, since it is smaller than the sum of its proper divisors (243766187358).

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

242431020642 is a wasteful number, since it uses less digits than its factorization.

242431020642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47730.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 242431020642 its reverse (246020134242), we get a palindrome (488451154884).

The spelling of 242431020642 in words is "two hundred forty-two billion, four hundred thirty-one million, twenty thousand, six hundred forty-two".