13613231211 has 8 divisors (see below), whose sum is σ = 18156013200. Its totient is φ = 9072968352.

The previous prime is 13613231197. The next prime is 13613231227. The reversal of 13613231211 is 11213231631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13613231211 - 2¹⁴ = 13613214827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13613238211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 617136 + ... + 638813.

It is an arithmetic number, because the mean of its divisors is an integer number (2269501650).

Almost surely, 2^13613231211 is an apocalyptic number.

13613231211 is a deficient number, since it is larger than the sum of its proper divisors (4542781989).

13613231211 is a wasteful number, since it uses less digits than its factorization.

13613231211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1259565.

The product of its digits is 648, while the sum is 24.

Adding to 13613231211 its reverse (11213231631), we get a palindrome (24826462842).

The spelling of 13613231211 in words is "thirteen billion, six hundred thirteen million, two hundred thirty-one thousand, two hundred eleven".