111440410813 has 2 divisors, whose sum is σ = 111440410814. Its totient is φ = 111440410812.

The previous prime is 111440410799. The next prime is 111440410831. The reversal of 111440410813 is 318014044111.

Together with next prime (111440410831) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76586134564 + 34854276249 = 276742^2 + 186693^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111440410813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111440410843) 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, 55720205406 + 55720205407.

It is an arithmetic number, because the mean of its divisors is an integer number (55720205407).

Almost surely, 2^111440410813 is an apocalyptic number.

It is an amenable number.

111440410813 is a deficient number, since it is larger than the sum of its proper divisors (1).

111440410813 is an equidigital number, since it uses as much as digits as its factorization.

111440410813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 28.

Adding to 111440410813 its reverse (318014044111), we get a palindrome (429454454924).

The spelling of 111440410813 in words is "one hundred eleven billion, four hundred forty million, four hundred ten thousand, eight hundred thirteen".