140144341121421 has 64 divisors (see below), whose sum is σ = 242092541644800. Its totient is φ = 70029372151296.

The previous prime is 140144341121419. The next prime is 140144341121429. The reversal of 140144341121421 is 124121143441041.

It is a happy number.

It is not a de Polignac number, because 140144341121421 - 2¹ = 140144341121419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140144341121429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 165608640 + ... + 166452726.

It is an arithmetic number, because the mean of its divisors is an integer number (3782695963200).

Almost surely, 2^{140144341121421} is an apocalyptic number.

It is an amenable number.

140144341121421 is a deficient number, since it is larger than the sum of its proper divisors (101948200523379).

140144341121421 is a wasteful number, since it uses less digits than its factorization.

140144341121421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876138.

The product of its (nonzero) digits is 12288, while the sum is 33.

Adding to 140144341121421 its reverse (124121143441041), we get a palindrome (264265484562462).

The spelling of 140144341121421 in words is "one hundred forty trillion, one hundred forty-four billion, three hundred forty-one million, one hundred twenty-one thousand, four hundred twenty-one".