4320011321 has 4 divisors (see below), whose sum is σ = 4574129652. Its totient is φ = 4065892992.

The previous prime is 4320011233. The next prime is 4320011347. The reversal of 4320011321 is 1231100234.

4320011321 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 3853926400 + 466084921 = 62080^2 + 21589^2 .

It is not a de Polignac number, because 4320011321 - 2³⁰ = 3246269497 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 254118313 = 4320011321 / (4 + 3 + 2 + 0 + 0 + 1 + 1 + 3 + 2 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4320011321.

It is not an unprimeable number, because it can be changed into a prime (4320011351) 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, 127059140 + ... + 127059173.

It is an arithmetic number, because the mean of its divisors is an integer number (1143532413).

Almost surely, 2^4320011321 is an apocalyptic number.

It is an amenable number.

4320011321 is a deficient number, since it is larger than the sum of its proper divisors (254118331).

4320011321 is a wasteful number, since it uses less digits than its factorization.

4320011321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254118330.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 4320011321 is about 65726.7930223284. The cubic root of 4320011321 is about 1628.6519926373.

Adding to 4320011321 its reverse (1231100234), we get a palindrome (5551111555).

The spelling of 4320011321 in words is "four billion, three hundred twenty million, eleven thousand, three hundred twenty-one".