111201220120013 has 2 divisors, whose sum is σ = 111201220120014. Its totient is φ = 111201220120012.

The previous prime is 111201220120007. The next prime is 111201220120021. The reversal of 111201220120013 is 310021022102111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110969833145284 + 231386974729 = 10534222^2 + 481027^2 .

It is a cyclic number.

It is not a de Polignac number, because 111201220120013 - 2¹⁴ = 111201220103629 is a prime.

It is a super-2 number, since 2×111201220120013² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111201220119973 and 111201220120000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111201220120513) 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 as a sum of consecutive naturals, namely, 55600610060006 + 55600610060007.

It is an arithmetic number, because the mean of its divisors is an integer number (55600610060007).

Almost surely, 2^{111201220120013} is an apocalyptic number.

It is an amenable number.

111201220120013 is a deficient number, since it is larger than the sum of its proper divisors (1).

111201220120013 is an equidigital number, since it uses as much as digits as its factorization.

111201220120013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 111201220120013 its reverse (310021022102111), we get a palindrome (421222242222124).

The spelling of 111201220120013 in words is "one hundred eleven trillion, two hundred one billion, two hundred twenty million, one hundred twenty thousand, thirteen".