4245352321 has 4 divisors (see below), whose sum is σ = 4851831232. Its totient is φ = 3638873412.

The previous prime is 4245352231. The next prime is 4245352333. The reversal of 4245352321 is 1232535424.

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 4245352321 - 2⁷ = 4245352193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4245352621) 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, 303239445 + ... + 303239458.

It is an arithmetic number, because the mean of its divisors is an integer number (1212957808).

Almost surely, 2^4245352321 is an apocalyptic number.

It is an amenable number.

4245352321 is a deficient number, since it is larger than the sum of its proper divisors (606478911).

4245352321 is an equidigital number, since it uses as much as digits as its factorization.

4245352321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606478910.

The product of its digits is 28800, while the sum is 31.

The square root of 4245352321 is about 65156.3682305882. The cubic root of 4245352321 is about 1619.2152273999.

Adding to 4245352321 its reverse (1232535424), we get a palindrome (5477887745).

The spelling of 4245352321 in words is "four billion, two hundred forty-five million, three hundred fifty-two thousand, three hundred twenty-one".