111133202231 has 2 divisors, whose sum is σ = 111133202232. Its totient is φ = 111133202230.

The previous prime is 111133202177. The next prime is 111133202261. The reversal of 111133202231 is 132202331111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111133202231 is a prime.

It is a super-2 number, since 2×111133202231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111133202261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55566601115 + 55566601116.

It is an arithmetic number, because the mean of its divisors is an integer number (55566601116).

Almost surely, 2^111133202231 is an apocalyptic number.

111133202231 is a deficient number, since it is larger than the sum of its proper divisors (1).

111133202231 is an equidigital number, since it uses as much as digits as its factorization.

111133202231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 111133202231 its reverse (132202331111), we get a palindrome (243335533342).

The spelling of 111133202231 in words is "one hundred eleven billion, one hundred thirty-three million, two hundred two thousand, two hundred thirty-one".