13211003212031 has 4 divisors (see below), whose sum is σ = 13211011183272. Its totient is φ = 13210995240792.

The previous prime is 13211003212007. The next prime is 13211003212081. The reversal of 13211003212031 is 13021230011231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13211003212031 is a prime.

It is a super-2 number, since 2×13211003212031² (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 = 13211003211994 and 13211003212012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13211003212081) 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, 460121 + ... + 5160786.

It is an arithmetic number, because the mean of its divisors is an integer number (3302752795818).

Almost surely, 2^{13211003212031} is an apocalyptic number.

13211003212031 is a deficient number, since it is larger than the sum of its proper divisors (7971241).

13211003212031 is an equidigital number, since it uses as much as digits as its factorization.

13211003212031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7971240.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 13211003212031 its reverse (13021230011231), we get a palindrome (26232233223262).

The spelling of 13211003212031 in words is "thirteen trillion, two hundred eleven billion, three million, two hundred twelve thousand, thirty-one".