4325131321 has 4 divisors (see below), whose sum is σ = 4943007232. Its totient is φ = 3707255412.

The previous prime is 4325131247. The next prime is 4325131339. The reversal of 4325131321 is 1231315234.

It is a happy number.

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 de Polignac number, because none of the positive numbers 2^k-4325131321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4325141321) 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, 308937945 + ... + 308937958.

It is an arithmetic number, because the mean of its divisors is an integer number (1235751808).

Almost surely, 2^4325131321 is an apocalyptic number.

It is an amenable number.

4325131321 is a deficient number, since it is larger than the sum of its proper divisors (617875911).

4325131321 is an equidigital number, since it uses as much as digits as its factorization.

4325131321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617875910.

The product of its digits is 2160, while the sum is 25.

The square root of 4325131321 is about 65765.7305973255. The cubic root of 4325131321 is about 1629.2951550010.

Adding to 4325131321 its reverse (1231315234), we get a palindrome (5556446555).

The spelling of 4325131321 in words is "four billion, three hundred twenty-five million, one hundred thirty-one thousand, three hundred twenty-one".