4231030021 has 8 divisors (see below), whose sum is σ = 4517663040. Its totient is φ = 3952953312.

The previous prime is 4231029949. The next prime is 4231030039. The reversal of 4231030021 is 1200301324.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 4231030021 - 2⁷ = 4231029893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4231029977 and 4231030004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4231030621) 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, 2138056 + ... + 2140033.

It is an arithmetic number, because the mean of its divisors is an integer number (564707880).

Almost surely, 2^4231030021 is an apocalyptic number.

It is an amenable number.

4231030021 is a deficient number, since it is larger than the sum of its proper divisors (286633019).

4231030021 is a wasteful number, since it uses less digits than its factorization.

4231030021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4278155.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 4231030021 is about 65046.3682383575. The cubic root of 4231030021 is about 1617.3922915761.

Adding to 4231030021 its reverse (1200301324), we get a palindrome (5431331345).

The spelling of 4231030021 in words is "four billion, two hundred thirty-one million, thirty thousand, twenty-one".