111999263 has 2 divisors, whose sum is σ = 111999264. Its totient is φ = 111999262.

The previous prime is 111999257. The next prime is 111999269. The reversal of 111999263 is 362999111.

It is a balanced prime because it is at equal distance from previous prime (111999257) and next prime (111999269).

It is a cyclic number.

It is not a de Polignac number, because 111999263 - 2²² = 107804959 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111999263.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111999269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55999631 + 55999632.

It is an arithmetic number, because the mean of its divisors is an integer number (55999632).

Almost surely, 2^111999263 is an apocalyptic number.

111999263 is a deficient number, since it is larger than the sum of its proper divisors (1).

111999263 is an equidigital number, since it uses as much as digits as its factorization.

111999263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26244, while the sum is 41.

The square root of 111999263 is about 10582.9704242240. The cubic root of 111999263 is about 482.0273955263.

The spelling of 111999263 in words is "one hundred eleven million, nine hundred ninety-nine thousand, two hundred sixty-three".