4343020012321 has 4 divisors (see below), whose sum is σ = 4343379754372. Its totient is φ = 4342660270272.

The previous prime is 4343020012291. The next prime is 4343020012349. The reversal of 4343020012321 is 1232100203434.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 416974981696 + 3926045030625 = 645736^2 + 1981425^2 .

It is a cyclic number.

It is not a de Polignac number, because 4343020012321 - 2⁷ = 4343020012193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4343020012381) 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, 179852916 + ... + 179877061.

It is an arithmetic number, because the mean of its divisors is an integer number (1085844938593).

Almost surely, 2^{4343020012321} is an apocalyptic number.

It is an amenable number.

4343020012321 is a deficient number, since it is larger than the sum of its proper divisors (359742051).

4343020012321 is a wasteful number, since it uses less digits than its factorization.

4343020012321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359742050.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 4343020012321 its reverse (1232100203434), we get a palindrome (5575120215755).

The spelling of 4343020012321 in words is "four trillion, three hundred forty-three billion, twenty million, twelve thousand, three hundred twenty-one".