111230320111 has 4 divisors (see below), whose sum is σ = 111292082224. Its totient is φ = 111168558000.

The previous prime is 111230320109. The next prime is 111230320129. The reversal of 111230320111 is 111023032111.

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 111230320111 - 2¹ = 111230320109 is a prime.

It is a super-2 number, since 2×111230320111² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111230320141) 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, 30878355 + ... + 30881956.

It is an arithmetic number, because the mean of its divisors is an integer number (27823020556).

Almost surely, 2^111230320111 is an apocalyptic number.

111230320111 is a deficient number, since it is larger than the sum of its proper divisors (61762113).

111230320111 is an equidigital number, since it uses as much as digits as its factorization.

111230320111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61762112.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 111230320111 its reverse (111023032111), we get a palindrome (222253352222).

The spelling of 111230320111 in words is "one hundred eleven billion, two hundred thirty million, three hundred twenty thousand, one hundred eleven".