4331220231 has 16 divisors (see below), whose sum is σ = 6223007840. Its totient is φ = 2663729280.

The previous prime is 4331220199. The next prime is 4331220239. The reversal of 4331220231 is 1320221334.

It is not a de Polignac number, because 4331220231 - 2⁵ = 4331220199 is a prime.

It is a super-2 number, since 2×4331220231² = 37518937378847386722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4331220198 and 4331220207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4331220239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31821 + ... + 98361.

It is an arithmetic number, because the mean of its divisors is an integer number (388937990).

Almost surely, 2^4331220231 is an apocalyptic number.

4331220231 is a deficient number, since it is larger than the sum of its proper divisors (1891787609).

4331220231 is a wasteful number, since it uses less digits than its factorization.

4331220231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68226.

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

The square root of 4331220231 is about 65812.0067388923. The cubic root of 4331220231 is about 1630.0593691601.

Adding to 4331220231 its reverse (1320221334), we get a palindrome (5651441565).

The spelling of 4331220231 in words is "four billion, three hundred thirty-one million, two hundred twenty thousand, two hundred thirty-one".