13303443421 has 8 divisors (see below), whose sum is σ = 13413800960. Its totient is φ = 13193173728.

The previous prime is 13303443403. The next prime is 13303443463. The reversal of 13303443421 is 12434430331.

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 13303443421 - 2⁹ = 13303442909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13303443421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13303443481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301825 + ... + 343081.

It is an arithmetic number, because the mean of its divisors is an integer number (1676725120).

Almost surely, 2^13303443421 is an apocalyptic number.

It is an amenable number.

13303443421 is a deficient number, since it is larger than the sum of its proper divisors (110357539).

13303443421 is a wasteful number, since it uses less digits than its factorization.

13303443421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43923.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 13303443421 its reverse (12434430331), we get a palindrome (25737873752).

The spelling of 13303443421 in words is "thirteen billion, three hundred three million, four hundred forty-three thousand, four hundred twenty-one".