13311122220113 has 4 divisors (see below), whose sum is σ = 13313851591860. Its totient is φ = 13308392848368.

The previous prime is 13311122220107. The next prime is 13311122220167. The reversal of 13311122220113 is 31102222111331.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6308049165889 + 7003073054224 = 2511583^2 + 2646332^2 .

It is a cyclic number.

It is not a de Polignac number, because 13311122220113 - 2¹² = 13311122216017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13311122220313) 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, 1364678558 + ... + 1364688311.

It is an arithmetic number, because the mean of its divisors is an integer number (3328462897965).

Almost surely, 2^{13311122220113} is an apocalyptic number.

It is an amenable number.

13311122220113 is a deficient number, since it is larger than the sum of its proper divisors (2729371747).

13311122220113 is an equidigital number, since it uses as much as digits as its factorization.

13311122220113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2729371746.

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

Adding to 13311122220113 its reverse (31102222111331), we get a palindrome (44413344331444).

The spelling of 13311122220113 in words is "thirteen trillion, three hundred eleven billion, one hundred twenty-two million, two hundred twenty thousand, one hundred thirteen".