242421203340442 has 16 divisors (see below), whose sum is σ = 415579762729152. Its totient is φ = 103894662180960.

The previous prime is 242421203340439. The next prime is 242421203340469. The reversal of 242421203340442 is 244043302124242.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 413659 + ... + 22023022.

It is an arithmetic number, because the mean of its divisors is an integer number (25973735170572).

Almost surely, 2^{242421203340442} is an apocalyptic number.

242421203340442 is a deficient number, since it is larger than the sum of its proper divisors (173158559388710).

242421203340442 is a wasteful number, since it uses less digits than its factorization.

242421203340442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23208453.

The product of its (nonzero) digits is 294912, while the sum is 37.

Adding to 242421203340442 its reverse (244043302124242), we get a palindrome (486464505464684).

The spelling of 242421203340442 in words is "two hundred forty-two trillion, four hundred twenty-one billion, two hundred three million, three hundred forty thousand, four hundred forty-two".