13230341021 has 4 divisors (see below), whose sum is σ = 13247457372. Its totient is φ = 13213224672.

The previous prime is 13230340997. The next prime is 13230341023. The reversal of 13230341021 is 12014303231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5378608921 + 7851732100 = 73339^2 + 88610^2 .

It is a cyclic number.

It is not a de Polignac number, because 13230341021 - 2⁶ = 13230340957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13230340984 and 13230341002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13230341023) 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, 8557016 + ... + 8558561.

It is an arithmetic number, because the mean of its divisors is an integer number (3311864343).

Almost surely, 2^13230341021 is an apocalyptic number.

It is an amenable number.

13230341021 is a deficient number, since it is larger than the sum of its proper divisors (17116351).

13230341021 is an equidigital number, since it uses as much as digits as its factorization.

13230341021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17116350.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 13230341021 its reverse (12014303231), we get a palindrome (25244644252).

The spelling of 13230341021 in words is "thirteen billion, two hundred thirty million, three hundred forty-one thousand, twenty-one".