4321201323 has 4 divisors (see below), whose sum is σ = 5761601768. Its totient is φ = 2880800880.

The previous prime is 4321201309. The next prime is 4321201327. The reversal of 4321201323 is 3231021234.

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

It is not a de Polignac number, because 4321201323 - 2¹⁸ = 4320939179 is a prime.

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 4321201323.

It is not an unprimeable number, because it can be changed into a prime (4321201327) 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, 720200218 + ... + 720200223.

It is an arithmetic number, because the mean of its divisors is an integer number (1440400442).

Almost surely, 2^4321201323 is an apocalyptic number.

4321201323 is a deficient number, since it is larger than the sum of its proper divisors (1440400445).

4321201323 is a wasteful number, since it uses less digits than its factorization.

4321201323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440400444.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 4321201323 is about 65735.8450390653. The cubic root of 4321201323 is about 1628.8015232020.

Adding to 4321201323 its reverse (3231021234), we get a palindrome (7552222557).

The spelling of 4321201323 in words is "four billion, three hundred twenty-one million, two hundred one thousand, three hundred twenty-three".