111220310113311 has 32 divisors (see below), whose sum is σ = 169507964759040. Its totient is φ = 63543440323584.

The previous prime is 111220310113273. The next prime is 111220310113379. The reversal of 111220310113311 is 113311013022111.

It is not a de Polignac number, because 111220310113311 - 2⁹ = 111220310112799 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111220310113391) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5613491841 + ... + 5613511653.

It is an arithmetic number, because the mean of its divisors is an integer number (5297123898720).

Almost surely, 2^{111220310113311} is an apocalyptic number.

111220310113311 is a deficient number, since it is larger than the sum of its proper divisors (58287654645729).

111220310113311 is a wasteful number, since it uses less digits than its factorization.

111220310113311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52695.

The product of its (nonzero) digits is 108, while the sum is 21.

Adding to 111220310113311 its reverse (113311013022111), we get a palindrome (224531323135422).

The spelling of 111220310113311 in words is "one hundred eleven trillion, two hundred twenty billion, three hundred ten million, one hundred thirteen thousand, three hundred eleven".