13333420405 has 8 divisors (see below), whose sum is σ = 16041238200. Its totient is φ = 10639313856.

The previous prime is 13333420403. The next prime is 13333420421. The reversal of 13333420405 is 50402433331.

It can be written as a sum of positive squares in 4 ways, for example, as 2532806929 + 10800613476 = 50327^2 + 103926^2 .

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 13333420405 - 2¹ = 13333420403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13333420403) 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, 3425670 + ... + 3429559.

It is an arithmetic number, because the mean of its divisors is an integer number (2005154775).

Almost surely, 2^13333420405 is an apocalyptic number.

It is an amenable number.

13333420405 is a deficient number, since it is larger than the sum of its proper divisors (2707817795).

13333420405 is an equidigital number, since it uses as much as digits as its factorization.

13333420405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6855623.

The product of its (nonzero) digits is 12960, while the sum is 28.

Adding to 13333420405 its reverse (50402433331), we get a palindrome (63735853736).

The spelling of 13333420405 in words is "thirteen billion, three hundred thirty-three million, four hundred twenty thousand, four hundred five".