13212121331311 has 8 divisors (see below), whose sum is σ = 15104408417280. Its totient is φ = 11321044540728.

The previous prime is 13212121331287. The next prime is 13212121331363. The reversal of 13212121331311 is 11313312121231.

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

It is a cyclic number.

It is not a de Polignac number, because 13212121331311 - 2⁷ = 13212121331183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13212121931311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302550451 + ... + 302594116.

It is an arithmetic number, because the mean of its divisors is an integer number (1888051052160).

Almost surely, 2^{13212121331311} is an apocalyptic number.

13212121331311 is a deficient number, since it is larger than the sum of its proper divisors (1892287085969).

13212121331311 is an equidigital number, since it uses as much as digits as its factorization.

13212121331311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605147693.

The product of its digits is 648, while the sum is 25.

Adding to 13212121331311 its reverse (11313312121231), we get a palindrome (24525433452542).

The spelling of 13212121331311 in words is "thirteen trillion, two hundred twelve billion, one hundred twenty-one million, three hundred thirty-one thousand, three hundred eleven".