13430443331 has 4 divisors (see below), whose sum is σ = 13459451232. Its totient is φ = 13401435432.

The previous prime is 13430443289. The next prime is 13430443333. The reversal of 13430443331 is 13334403431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13334403431 = 557 ⋅23939683.

It is a cyclic number.

It is not a de Polignac number, because 13430443331 - 2¹⁸ = 13430181187 is a prime.

It is a super-2 number, since 2×13430443331² (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 = 13430443294 and 13430443303.

It is not an unprimeable number, because it can be changed into a prime (13430443333) 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, 14503256 + ... + 14504181.

It is an arithmetic number, because the mean of its divisors is an integer number (3364862808).

Almost surely, 2^13430443331 is an apocalyptic number.

13430443331 is a deficient number, since it is larger than the sum of its proper divisors (29007901).

13430443331 is an equidigital number, since it uses as much as digits as its factorization.

13430443331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29007900.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 13430443331 its reverse (13334403431), we get a palindrome (26764846762).

The spelling of 13430443331 in words is "thirteen billion, four hundred thirty million, four hundred forty-three thousand, three hundred thirty-one".