1443142420121 has 16 divisors (see below), whose sum is σ = 1492091166720. Its totient is φ = 1395023368320.

The previous prime is 1443142420087. The next prime is 1443142420129. The reversal of 1443142420121 is 1210242413441.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1443142420121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1443142420129) 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 in 15 ways as a sum of consecutive naturals, for example, 12839261 + ... + 12951173.

It is an arithmetic number, because the mean of its divisors is an integer number (93255697920).

Almost surely, 2^{1443142420121} is an apocalyptic number.

It is an amenable number.

1443142420121 is a deficient number, since it is larger than the sum of its proper divisors (48948746599).

1443142420121 is a wasteful number, since it uses less digits than its factorization.

1443142420121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115616.

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

Adding to 1443142420121 its reverse (1210242413441), we get a palindrome (2653384833562).

The spelling of 1443142420121 in words is "one trillion, four hundred forty-three billion, one hundred forty-two million, four hundred twenty thousand, one hundred twenty-one".