4453421403321 has 48 divisors (see below), whose sum is σ = 7123716093312. Its totient is φ = 2658472704000.

The previous prime is 4453421403289. The next prime is 4453421403331. The reversal of 4453421403321 is 1233041243544.

4453421403321 is a `hidden beast` number, since 4 + 453 + 42 + 140 + 3 + 3 + 21 = 666.

It is not a de Polignac number, because 4453421403321 - 2⁵ = 4453421403289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4453421403331) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 775956 + ... + 3083658.

It is an arithmetic number, because the mean of its divisors is an integer number (148410751944).

Almost surely, 2^{4453421403321} is an apocalyptic number.

It is an amenable number.

4453421403321 is a deficient number, since it is larger than the sum of its proper divisors (2670294689991).

4453421403321 is a wasteful number, since it uses less digits than its factorization.

4453421403321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2308014 (or 2308011 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

Adding to 4453421403321 its reverse (1233041243544), we get a palindrome (5686462646865).

The spelling of 4453421403321 in words is "four trillion, four hundred fifty-three billion, four hundred twenty-one million, four hundred three thousand, three hundred twenty-one".