13343132421 has 24 divisors (see below), whose sum is σ = 19366049664. Its totient is φ = 8852742720.

The previous prime is 13343132389. The next prime is 13343132423. The reversal of 13343132421 is 12423134331.

It is a happy number.

13343132421 is a `hidden beast` number, since 1 + 334 + 3 + 1 + 324 + 2 + 1 = 666.

It is not a de Polignac number, because 13343132421 - 2⁵ = 13343132389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13343132423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2673090 + ... + 2678076.

It is an arithmetic number, because the mean of its divisors is an integer number (806918736).

Almost surely, 2^13343132421 is an apocalyptic number.

It is an amenable number.

13343132421 is a deficient number, since it is larger than the sum of its proper divisors (6022917243).

13343132421 is a wasteful number, since it uses less digits than its factorization.

13343132421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6361 (or 6358 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

Adding to 13343132421 its reverse (12423134331), we get a palindrome (25766266752).

The spelling of 13343132421 in words is "thirteen billion, three hundred forty-three million, one hundred thirty-two thousand, four hundred twenty-one".