242121444134 has 4 divisors (see below), whose sum is σ = 363182166204. Its totient is φ = 121060722066.

The previous prime is 242121444109. The next prime is 242121444151. The reversal of 242121444134 is 431444121242.

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

It is a self number, because there is not a number n which added to its sum of digits gives 242121444134.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 60530361032 + ... + 60530361035.

It is an arithmetic number, because the mean of its divisors is an integer number (90795541551).

Almost surely, 2^242121444134 is an apocalyptic number.

242121444134 is a deficient number, since it is larger than the sum of its proper divisors (121060722070).

242121444134 is a wasteful number, since it uses less digits than its factorization.

242121444134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121060722069.

The product of its digits is 24576, while the sum is 32.

Adding to 242121444134 its reverse (431444121242), we get a palindrome (673565565376).

The spelling of 242121444134 in words is "two hundred forty-two billion, one hundred twenty-one million, four hundred forty-four thousand, one hundred thirty-four".