111111300231 has 32 divisors (see below), whose sum is σ = 157569131520. Its totient is φ = 69489049344.

The previous prime is 111111300217. The next prime is 111111300239. The reversal of 111111300231 is 132003111111.

It is not a de Polignac number, because 111111300231 - 2²⁹ = 110574429319 is a prime.

It is a super-2 number, since 2×111111300231² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111111300231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111111300239) 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, 13010995 + ... + 13019531.

It is an arithmetic number, because the mean of its divisors is an integer number (4924035360).

Almost surely, 2^111111300231 is an apocalyptic number.

111111300231 is a deficient number, since it is larger than the sum of its proper divisors (46457831289).

111111300231 is a wasteful number, since it uses less digits than its factorization.

111111300231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12175.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 111111300231 its reverse (132003111111), we get a palindrome (243114411342).

The spelling of 111111300231 in words is "one hundred eleven billion, one hundred eleven million, three hundred thousand, two hundred thirty-one".