4320344134221 has 4 divisors (see below), whose sum is σ = 5760458845632. Its totient is φ = 2880229422812.

The previous prime is 4320344134177. The next prime is 4320344134237. The reversal of 4320344134221 is 1224314430234.

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 not a de Polignac number, because 4320344134221 - 2³³ = 4311754199629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4320344134621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 720057355701 + ... + 720057355706.

It is an arithmetic number, because the mean of its divisors is an integer number (1440114711408).

Almost surely, 2^{4320344134221} is an apocalyptic number.

It is an amenable number.

4320344134221 is a deficient number, since it is larger than the sum of its proper divisors (1440114711411).

4320344134221 is a wasteful number, since it uses less digits than its factorization.

4320344134221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440114711410.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 4320344134221 its reverse (1224314430234), we get a palindrome (5544658564455).

The spelling of 4320344134221 in words is "four trillion, three hundred twenty billion, three hundred forty-four million, one hundred thirty-four thousand, two hundred twenty-one".