13020230321 has 16 divisors (see below), whose sum is σ = 14928798720. Its totient is φ = 11123850960.

The previous prime is 13020230303. The next prime is 13020230357. The reversal of 13020230321 is 12303202031.

It is a cyclic number.

It is not a de Polignac number, because 13020230321 - 2¹⁴ = 13020213937 is a prime.

It is a super-2 number, since 2×13020230321² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13020230321.

It is not an unprimeable number, because it can be changed into a prime (13020230221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5490266 + ... + 5492636.

It is an arithmetic number, because the mean of its divisors is an integer number (933049920).

Almost surely, 2^13020230321 is an apocalyptic number.

It is an amenable number.

13020230321 is a deficient number, since it is larger than the sum of its proper divisors (1908568399).

13020230321 is a wasteful number, since it uses less digits than its factorization.

13020230321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4604.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 13020230321 its reverse (12303202031), we get a palindrome (25323432352).

The spelling of 13020230321 in words is "thirteen billion, twenty million, two hundred thirty thousand, three hundred twenty-one".