111863 has 2 divisors, whose sum is σ = 111864. Its totient is φ = 111862.

The previous prime is 111857. The next prime is 111869. The reversal of 111863 is 368111.

It is a balanced prime because it is at equal distance from previous prime (111857) and next prime (111869).

It is an emirp because it is prime and its reverse (368111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111863 - 2⁴ = 111847 is a prime.

It is a plaindrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55931 + 55932.

It is an arithmetic number, because the mean of its divisors is an integer number (55932).

2¹¹¹⁸⁶³ is an apocalyptic number.

111863 is a deficient number, since it is larger than the sum of its proper divisors (1).

111863 is an equidigital number, since it uses as much as digits as its factorization.

111863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 20.

The square root of 111863 is about 334.4592650832. The cubic root of 111863 is about 48.1831831280.

Adding to 111863 its reverse (368111), we get a palindrome (479974).

The spelling of 111863 in words is "one hundred eleven thousand, eight hundred sixty-three".