111220302013 has 16 divisors (see below), whose sum is σ = 115593618672. Its totient is φ = 106928640000.

The previous prime is 111220302001. The next prime is 111220302043. The reversal of 111220302013 is 310203022111.

It can be written as a sum of positive squares in 8 ways, for example, as 49687530649 + 61532771364 = 222907^2 + 248058^2 .

It is a cyclic number.

It is not a de Polignac number, because 111220302013 - 2²¹ = 111218204861 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 (111220302043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3579123 + ... + 3610063.

It is an arithmetic number, because the mean of its divisors is an integer number (7224601167).

Almost surely, 2^111220302013 is an apocalyptic number.

It is an amenable number.

111220302013 is a deficient number, since it is larger than the sum of its proper divisors (4373316659).

111220302013 is a wasteful number, since it uses less digits than its factorization.

111220302013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32256.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 111220302013 its reverse (310203022111), we get a palindrome (421423324124).

The spelling of 111220302013 in words is "one hundred eleven billion, two hundred twenty million, three hundred two thousand, thirteen".