13311303211231 has 4 divisors (see below), whose sum is σ = 13311322062264. Its totient is φ = 13311284360200.

The previous prime is 13311303211147. The next prime is 13311303211253. The reversal of 13311303211231 is 13211230311331.

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 13311303211231 - 2²⁷ = 13311168993503 is a prime.

It is a super-2 number, since 2×13311303211231² (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 = 13311303211196 and 13311303211205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13311303311231) 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, 8323360 + ... + 9792901.

It is an arithmetic number, because the mean of its divisors is an integer number (3327830515566).

Almost surely, 2^{13311303211231} is an apocalyptic number.

13311303211231 is a deficient number, since it is larger than the sum of its proper divisors (18851033).

13311303211231 is an equidigital number, since it uses as much as digits as its factorization.

13311303211231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18851032.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 13311303211231 its reverse (13211230311331), we get a palindrome (26522533522562).

The spelling of 13311303211231 in words is "thirteen trillion, three hundred eleven billion, three hundred three million, two hundred eleven thousand, two hundred thirty-one".