3230340021 has 20 divisors (see below), whose sum is σ = 4943271564. Its totient is φ = 2101032000.

The previous prime is 3230339989. The next prime is 3230340059. The reversal of 3230340021 is 1200430323.

3230340021 is a `hidden beast` number, since 323 + 0 + 340 + 0 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1463062500 + 1767277521 = 38250^2 + 42039^2 .

It is not a de Polignac number, because 3230340021 - 2⁵ = 3230339989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3230339976 and 3230340003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3230340821) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 483030 + ... + 489671.

Almost surely, 2^3230340021 is an apocalyptic number.

It is an amenable number.

3230340021 is a deficient number, since it is larger than the sum of its proper divisors (1712931543).

3230340021 is an equidigital number, since it uses as much as digits as its factorization.

3230340021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972754 (or 972745 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 3230340021 is about 56836.0802747691. The cubic root of 3230340021 is about 1478.2551907348.

Adding to 3230340021 its reverse (1200430323), we get a palindrome (4430770344).

The spelling of 3230340021 in words is "three billion, two hundred thirty million, three hundred forty thousand, twenty-one".