111299305 has 16 divisors (see below), whose sum is σ = 144288144. Its totient is φ = 81930240.

The previous prime is 111299299. The next prime is 111299327. The reversal of 111299305 is 503992111.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 34351321 + 76947984 = 5861^2 + 8772^2 .

It is not a de Polignac number, because 111299305 - 2¹⁵ = 111266537 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19365 + ... + 24445.

It is an arithmetic number, because the mean of its divisors is an integer number (9018009).

Almost surely, 2^111299305 is an apocalyptic number.

It is an amenable number.

111299305 is a deficient number, since it is larger than the sum of its proper divisors (32988839).

111299305 is a wasteful number, since it uses less digits than its factorization.

111299305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5436.

The product of its (nonzero) digits is 2430, while the sum is 31.

The square root of 111299305 is about 10549.8485771124. The cubic root of 111299305 is about 481.0211262284.

The spelling of 111299305 in words is "one hundred eleven million, two hundred ninety-nine thousand, three hundred five".