13211113013231 has 4 divisors (see below), whose sum is σ = 15098414872272. Its totient is φ = 11323811154192.

The previous prime is 13211113013213. The next prime is 13211113013237. The reversal of 13211113013231 is 13231031111231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13211113013231 - 2⁴² = 8813066502127 is a prime.

It is a super-2 number, since 2×13211113013231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13211113013197 and 13211113013206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13211113013237) 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, 943650929510 + ... + 943650929523.

It is an arithmetic number, because the mean of its divisors is an integer number (3774603718068).

Almost surely, 2^{13211113013231} is an apocalyptic number.

13211113013231 is a deficient number, since it is larger than the sum of its proper divisors (1887301859041).

13211113013231 is an equidigital number, since it uses as much as digits as its factorization.

13211113013231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1887301859040.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 13211113013231 its reverse (13231031111231), we get a palindrome (26442144124462).

The spelling of 13211113013231 in words is "thirteen trillion, two hundred eleven billion, one hundred thirteen million, thirteen thousand, two hundred thirty-one".