13121201322311 has 4 divisors (see below), whose sum is σ = 13127592557352. Its totient is φ = 13114810087272.

The previous prime is 13121201322239. The next prime is 13121201322337. The reversal of 13121201322311 is 11322310212131.

It is a happy number.

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 13121201322311 - 2²² = 13121197128007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121201322811) 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 3 ways as a sum of consecutive naturals, for example, 3195614441 + ... + 3195618546.

It is an arithmetic number, because the mean of its divisors is an integer number (3281898139338).

Almost surely, 2^{13121201322311} is an apocalyptic number.

13121201322311 is a deficient number, since it is larger than the sum of its proper divisors (6391235041).

13121201322311 is an equidigital number, since it uses as much as digits as its factorization.

13121201322311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6391235040.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 13121201322311 its reverse (11322310212131), we get a palindrome (24443511534442).

The spelling of 13121201322311 in words is "thirteen trillion, one hundred twenty-one billion, two hundred one million, three hundred twenty-two thousand, three hundred eleven".