111120217853 has 2 divisors, whose sum is σ = 111120217854. Its totient is φ = 111120217852.

The previous prime is 111120217829. The next prime is 111120217889. The reversal of 111120217853 is 358712021111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103026876484 + 8093341369 = 320978^2 + 89963^2 .

It is a cyclic number.

It is not a de Polignac number, because 111120217853 - 2⁸ = 111120217597 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111120210853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55560108926 + 55560108927.

It is an arithmetic number, because the mean of its divisors is an integer number (55560108927).

Almost surely, 2^111120217853 is an apocalyptic number.

It is an amenable number.

111120217853 is a deficient number, since it is larger than the sum of its proper divisors (1).

111120217853 is an equidigital number, since it uses as much as digits as its factorization.

111120217853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 32.

Adding to 111120217853 its reverse (358712021111), we get a palindrome (469832238964).

The spelling of 111120217853 in words is "one hundred eleven billion, one hundred twenty million, two hundred seventeen thousand, eight hundred fifty-three".