242144440102 has 4 divisors (see below), whose sum is σ = 363216660156. Its totient is φ = 121072220050.

The previous prime is 242144440093. The next prime is 242144440121. The reversal of 242144440102 is 201044441242.

It is a happy number.

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

It is a super-2 number, since 2×242144440102² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60536110024 + ... + 60536110027.

It is an arithmetic number, because the mean of its divisors is an integer number (90804165039).

Almost surely, 2^242144440102 is an apocalyptic number.

242144440102 is a deficient number, since it is larger than the sum of its proper divisors (121072220054).

242144440102 is a wasteful number, since it uses less digits than its factorization.

242144440102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121072220053.

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 242144440102 its reverse (201044441242), we get a palindrome (443188881344).

The spelling of 242144440102 in words is "two hundred forty-two billion, one hundred forty-four million, four hundred forty thousand, one hundred two".