13221230131 has 8 divisors (see below), whose sum is σ = 13469601024. Its totient is φ = 12974360520.

The previous prime is 13221230059. The next prime is 13221230137. The reversal of 13221230131 is 13103212231.

13221230131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13221230131 - 2⁷ = 13221230003 is a prime.

It is a super-2 number, since 2×13221230131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13221230099 and 13221230108.

It is not an unprimeable number, because it can be changed into a prime (13221230137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 357535 + ... + 392776.

It is an arithmetic number, because the mean of its divisors is an integer number (1683700128).

Almost surely, 2^13221230131 is an apocalyptic number.

13221230131 is a deficient number, since it is larger than the sum of its proper divisors (248370893).

13221230131 is an equidigital number, since it uses as much as digits as its factorization.

13221230131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750641.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 13221230131 its reverse (13103212231), we get a palindrome (26324442362).

The spelling of 13221230131 in words is "thirteen billion, two hundred twenty-one million, two hundred thirty thousand, one hundred thirty-one".