1442003553421 has 8 divisors (see below), whose sum is σ = 1451594165504. Its totient is φ = 1432422014400.

The previous prime is 1442003553391. The next prime is 1442003553461. The reversal of 1442003553421 is 1243553002441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1442003553421 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 (1442003553461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1949196 + ... + 2585221.

It is an arithmetic number, because the mean of its divisors is an integer number (181449270688).

Almost surely, 2^{1442003553421} is an apocalyptic number.

It is an amenable number.

1442003553421 is a deficient number, since it is larger than the sum of its proper divisors (9590612083).

1442003553421 is a wasteful number, since it uses less digits than its factorization.

1442003553421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4536531.

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 1442003553421 its reverse (1243553002441), we get a palindrome (2685556555862).

The spelling of 1442003553421 in words is "one trillion, four hundred forty-two billion, three million, five hundred fifty-three thousand, four hundred twenty-one".