111131400223 has 2 divisors, whose sum is σ = 111131400224. Its totient is φ = 111131400222.

The previous prime is 111131400173. The next prime is 111131400227. The reversal of 111131400223 is 322004131111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111131400223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111131400223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111131400227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55565700111 + 55565700112.

It is an arithmetic number, because the mean of its divisors is an integer number (55565700112).

Almost surely, 2^111131400223 is an apocalyptic number.

111131400223 is a deficient number, since it is larger than the sum of its proper divisors (1).

111131400223 is an equidigital number, since it uses as much as digits as its factorization.

111131400223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 111131400223 its reverse (322004131111), we get a palindrome (433135531334).

The spelling of 111131400223 in words is "one hundred eleven billion, one hundred thirty-one million, four hundred thousand, two hundred twenty-three".