13430355421 has 64 divisors (see below), whose sum is σ = 16593223680. Its totient is φ = 10633109760.

The previous prime is 13430355373. The next prime is 13430355443. The reversal of 13430355421 is 12455303431.

13430355421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13430355421 - 2¹¹ = 13430353373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13430355461) 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 63 ways as a sum of consecutive naturals, for example, 68174295 + ... + 68174491.

It is an arithmetic number, because the mean of its divisors is an integer number (259269120).

Almost surely, 2^13430355421 is an apocalyptic number.

It is an amenable number.

13430355421 is a deficient number, since it is larger than the sum of its proper divisors (3162868259).

13430355421 is a wasteful number, since it uses less digits than its factorization.

13430355421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 13430355421 its reverse (12455303431), we get a palindrome (25885658852).

The spelling of 13430355421 in words is "thirteen billion, four hundred thirty million, three hundred fifty-five thousand, four hundred twenty-one".