13213441409 has 4 divisors (see below), whose sum is σ = 15101075904. Its totient is φ = 11325806916.

The previous prime is 13213441399. The next prime is 13213441421. The reversal of 13213441409 is 90414431231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13213441409 - 2¹² = 13213437313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13213441469) 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, 943817237 + ... + 943817250.

It is an arithmetic number, because the mean of its divisors is an integer number (3775268976).

Almost surely, 2^13213441409 is an apocalyptic number.

It is an amenable number.

13213441409 is a deficient number, since it is larger than the sum of its proper divisors (1887634495).

13213441409 is an equidigital number, since it uses as much as digits as its factorization.

13213441409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1887634494.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 13213441409 in words is "thirteen billion, two hundred thirteen million, four hundred forty-one thousand, four hundred nine".