111111200231 has 16 divisors (see below), whose sum is σ = 113878448640. Its totient is φ = 108385405440.

The previous prime is 111111200219. The next prime is 111111200261. The reversal of 111111200231 is 132002111111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111111200231 is a prime.

It is a super-2 number, since 2×111111200231² (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 (111111200261) 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, 2325575 + ... + 2372871.

It is an arithmetic number, because the mean of its divisors is an integer number (7117403040).

Almost surely, 2^111111200231 is an apocalyptic number.

111111200231 is a deficient number, since it is larger than the sum of its proper divisors (2767248409).

111111200231 is a wasteful number, since it uses less digits than its factorization.

111111200231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47734.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 111111200231 its reverse (132002111111), we get a palindrome (243113311342).

The spelling of 111111200231 in words is "one hundred eleven billion, one hundred eleven million, two hundred thousand, two hundred thirty-one".