4420231321 has 8 divisors (see below), whose sum is σ = 4831740000. Its totient is φ = 4010334240.

The previous prime is 4420231313. The next prime is 4420231357. The reversal of 4420231321 is 1231320244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4420231321 - 2³ = 4420231313 is a prime.

It is a super-3 number, since 3×4420231321³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4420231292 and 4420231301.

It is not an unprimeable number, because it can be changed into a prime (4420231391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397156 + ... + 408133.

It is an arithmetic number, because the mean of its divisors is an integer number (603967500).

Almost surely, 2^4420231321 is an apocalyptic number.

It is an amenable number.

4420231321 is a deficient number, since it is larger than the sum of its proper divisors (411508679).

4420231321 is a wasteful number, since it uses less digits than its factorization.

4420231321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805799.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 4420231321 is about 66484.8202298841. The cubic root of 4420231321 is about 1641.1502094992.

Adding to 4420231321 its reverse (1231320244), we get a palindrome (5651551565).

It can be divided in two parts, 442023 and 1321, that added together give a palindrome (443344).

The spelling of 4420231321 in words is "four billion, four hundred twenty million, two hundred thirty-one thousand, three hundred twenty-one".