4042121132144 has 10 divisors (see below), whose sum is σ = 7831609693560. Its totient is φ = 2021060566064.

The previous prime is 4042121132141. The next prime is 4042121132149. The reversal of 4042121132144 is 4412311212404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4042121132141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126316285364 + ... + 126316285395.

It is an arithmetic number, because the mean of its divisors is an integer number (783160969356).

Almost surely, 2^{4042121132144} is an apocalyptic number.

It is an amenable number.

4042121132144 is a deficient number, since it is larger than the sum of its proper divisors (3789488561416).

4042121132144 is a wasteful number, since it uses less digits than its factorization.

4042121132144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252632570767 (or 252632570761 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 4042121132144 its reverse (4412311212404), we get a palindrome (8454432344548).

The spelling of 4042121132144 in words is "four trillion, forty-two billion, one hundred twenty-one million, one hundred thirty-two thousand, one hundred forty-four".