144311242101421 has 4 divisors (see below), whose sum is σ = 145196587145152. Its totient is φ = 143425897057692.

The previous prime is 144311242101391. The next prime is 144311242101449. The reversal of 144311242101421 is 124101242113441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144311242101421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144311242191421) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 442672521621 + ... + 442672521946.

It is an arithmetic number, because the mean of its divisors is an integer number (36299146786288).

Almost surely, 2^{144311242101421} is an apocalyptic number.

It is an amenable number.

144311242101421 is a deficient number, since it is larger than the sum of its proper divisors (885345043731).

144311242101421 is an equidigital number, since it uses as much as digits as its factorization.

144311242101421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885345043730.

The product of its (nonzero) digits is 6144, while the sum is 31.

Adding to 144311242101421 its reverse (124101242113441), we get a palindrome (268412484214862).

The spelling of 144311242101421 in words is "one hundred forty-four trillion, three hundred eleven billion, two hundred forty-two million, one hundred one thousand, four hundred twenty-one".