1421202321344 has 112 divisors (see below), whose sum is σ = 3198735365280. Its totient is φ = 621076377600.

The previous prime is 1421202321317. The next prime is 1421202321359. The reversal of 1421202321344 is 4431232021241.

It is a congruent number.

It is an unprimeable number.

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, 30027362 + ... + 30074654.

It is an arithmetic number, because the mean of its divisors is an integer number (28560137190).

Almost surely, 2^{1421202321344} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1421202321344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1599367682640).

1421202321344 is an abundant number, since it is smaller than the sum of its proper divisors (1777533043936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1421202321344 is a wasteful number, since it uses less digits than its factorization.

1421202321344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49238 (or 49228 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 1421202321344 its reverse (4431232021241), we get a palindrome (5852434342585).

The spelling of 1421202321344 in words is "one trillion, four hundred twenty-one billion, two hundred two million, three hundred twenty-one thousand, three hundred forty-four".